Toán cơ bản Ví dụ

238.75 \div 10.5

$238.75 \div 10.5$

Bước 1

Lập bài toán chia ở dạng phép chia số lớn.

1

$1$

0

$0$

5

$5$

0

$0$

2

$2$

3

$3$

8

$8$

7

$7$

5

$5$

Bước 2

Di chuyển số thập phân ở cả hai số cùng một số lượng vị trí cho đến khi số chia là một số nguyên không âm.

1

$1$

0

$0$

5

$5$

0

$0$

2

$2$

3

$3$

8

$8$

7

$7$

5

$5$

Bước 3

Chia

2387

$2387$ cho

1050

$1050$ . Đặt chữ số này vào thương số trên biểu tượng chia.

							$2$ $2$
$1$ $1$	$0$ $0$	$5$ $5$	$0$ $0$	$2$ $2$	$3$ $3$	$8$ $8$	$7$ $7$	$5$ $5$

Bước 4

Nhân chữ số mới nhất của thương số

(2)

$(2)$ với số chia

1050

$1050$ .

							$2$ $2$
$1$ $1$	$0$ $0$	$5$ $5$	$0$ $0$	$2$ $2$	$3$ $3$	$8$ $8$	$7$ $7$	$5$ $5$
			$-$ $-$	$2$ $2$	$1$ $1$	$0$ $0$	$0$ $0$

Bước 5

Trừ

2100

$2100$ khỏi

2387

$2387$ .

							$2$ $2$
$1$ $1$	$0$ $0$	$5$ $5$	$0$ $0$	$2$ $2$	$3$ $3$	$8$ $8$	$7$ $7$	$5$ $5$
			$-$ $-$	$2$ $2$	$1$ $1$	$0$ $0$	$0$ $0$
					$2$ $2$	$8$ $8$	$7$ $7$

Bước 6

Hạ số tiếp theo của số bị chia xuống.

							$2$ $2$
$1$ $1$	$0$ $0$	$5$ $5$	$0$ $0$	$2$ $2$	$3$ $3$	$8$ $8$	$7$ $7$	$5$ $5$
			$-$ $-$	$2$ $2$	$1$ $1$	$0$ $0$	$0$ $0$
					$2$ $2$	$8$ $8$	$7$ $7$	$5$ $5$

Bước 7

Chia

2875

$2875$ cho

1050

$1050$ . Đặt chữ số này vào thương số trên biểu tượng chia.

							$2$ $2$	$2$ $2$
$1$ $1$	$0$ $0$	$5$ $5$	$0$ $0$	$2$ $2$	$3$ $3$	$8$ $8$	$7$ $7$	$5$ $5$
			$-$ $-$	$2$ $2$	$1$ $1$	$0$ $0$	$0$ $0$
					$2$ $2$	$8$ $8$	$7$ $7$	$5$ $5$

Bước 8

Nhân chữ số mới nhất của thương số

(2)

$(2)$ với số chia

1050

$1050$ .

							$2$ $2$	$2$ $2$
$1$ $1$	$0$ $0$	$5$ $5$	$0$ $0$	$2$ $2$	$3$ $3$	$8$ $8$	$7$ $7$	$5$ $5$
			$-$ $-$	$2$ $2$	$1$ $1$	$0$ $0$	$0$ $0$
					$2$ $2$	$8$ $8$	$7$ $7$	$5$ $5$
				$-$ $-$	$2$ $2$	$1$ $1$	$0$ $0$	$0$ $0$

Bước 9

Trừ

2100

$2100$ khỏi

2875

$2875$ .

							$2$ $2$	$2$ $2$
$1$ $1$	$0$ $0$	$5$ $5$	$0$ $0$	$2$ $2$	$3$ $3$	$8$ $8$	$7$ $7$	$5$ $5$
			$-$ $-$	$2$ $2$	$1$ $1$	$0$ $0$	$0$ $0$
					$2$ $2$	$8$ $8$	$7$ $7$	$5$ $5$
				$-$ $-$	$2$ $2$	$1$ $1$	$0$ $0$	$0$ $0$
						$7$ $7$	$7$ $7$	$5$ $5$

Bước 10

Thêm một

0

$0$ vào cuối số bị chia.

							$2$ $2$	$2$ $2$
$1$ $1$	$0$ $0$	$5$ $5$	$0$ $0$	$2$ $2$	$3$ $3$	$8$ $8$	$7$ $7$	$5$ $5$	.	$0$ $0$
			$-$ $-$	$2$ $2$	$1$ $1$	$0$ $0$	$0$ $0$
					$2$ $2$	$8$ $8$	$7$ $7$	$5$ $5$
				$-$ $-$	$2$ $2$	$1$ $1$	$0$ $0$	$0$ $0$
						$7$ $7$	$7$ $7$	$5$ $5$

Bước 11

Hạ số tiếp theo của số bị chia xuống.

							$2$ $2$	$2$ $2$
$1$ $1$	$0$ $0$	$5$ $5$	$0$ $0$	$2$ $2$	$3$ $3$	$8$ $8$	$7$ $7$	$5$ $5$	.	$0$ $0$
			$-$ $-$	$2$ $2$	$1$ $1$	$0$ $0$	$0$ $0$
					$2$ $2$	$8$ $8$	$7$ $7$	$5$ $5$
				$-$ $-$	$2$ $2$	$1$ $1$	$0$ $0$	$0$ $0$
						$7$ $7$	$7$ $7$	$5$ $5$	$0$ $0$

Bước 12

Chia

7750

$7750$ cho

1050

$1050$ . Đặt chữ số này vào thương số trên biểu tượng chia.

							$2$ $2$	$2$ $2$	.	$7$ $7$
$1$ $1$	$0$ $0$	$5$ $5$	$0$ $0$	$2$ $2$	$3$ $3$	$8$ $8$	$7$ $7$	$5$ $5$	.	$0$ $0$
			$-$ $-$	$2$ $2$	$1$ $1$	$0$ $0$	$0$ $0$
					$2$ $2$	$8$ $8$	$7$ $7$	$5$ $5$
				$-$ $-$	$2$ $2$	$1$ $1$	$0$ $0$	$0$ $0$
						$7$ $7$	$7$ $7$	$5$ $5$	$0$ $0$

Bước 13

Nhân chữ số mới nhất của thương số

(7)

$(7)$ với số chia

1050

$1050$ .

							$2$ $2$	$2$ $2$	.	$7$ $7$
$1$ $1$	$0$ $0$	$5$ $5$	$0$ $0$	$2$ $2$	$3$ $3$	$8$ $8$	$7$ $7$	$5$ $5$	.	$0$ $0$
			$-$ $-$	$2$ $2$	$1$ $1$	$0$ $0$	$0$ $0$
					$2$ $2$	$8$ $8$	$7$ $7$	$5$ $5$
				$-$ $-$	$2$ $2$	$1$ $1$	$0$ $0$	$0$ $0$
						$7$ $7$	$7$ $7$	$5$ $5$	$0$ $0$
						$-$ $-$	$7$ $7$	$3$ $3$	$5$ $5$	$0$ $0$

Bước 14

Trừ

7350

$7350$ khỏi

7750

$7750$ .

							$2$ $2$	$2$ $2$	.	$7$ $7$
$1$ $1$	$0$ $0$	$5$ $5$	$0$ $0$	$2$ $2$	$3$ $3$	$8$ $8$	$7$ $7$	$5$ $5$	.	$0$ $0$
			$-$ $-$	$2$ $2$	$1$ $1$	$0$ $0$	$0$ $0$
					$2$ $2$	$8$ $8$	$7$ $7$	$5$ $5$
				$-$ $-$	$2$ $2$	$1$ $1$	$0$ $0$	$0$ $0$
						$7$ $7$	$7$ $7$	$5$ $5$	$0$ $0$
						$-$ $-$	$7$ $7$	$3$ $3$	$5$ $5$	$0$ $0$
								$4$ $4$	$0$ $0$	$0$ $0$

Bước 15

Thêm một

0

$0$ vào cuối số bị chia.

							$2$ $2$	$2$ $2$	.	$7$ $7$
$1$ $1$	$0$ $0$	$5$ $5$	$0$ $0$	$2$ $2$	$3$ $3$	$8$ $8$	$7$ $7$	$5$ $5$	.	$0$ $0$	$0$ $0$
			$-$ $-$	$2$ $2$	$1$ $1$	$0$ $0$	$0$ $0$
					$2$ $2$	$8$ $8$	$7$ $7$	$5$ $5$
				$-$ $-$	$2$ $2$	$1$ $1$	$0$ $0$	$0$ $0$
						$7$ $7$	$7$ $7$	$5$ $5$	$0$ $0$
						$-$ $-$	$7$ $7$	$3$ $3$	$5$ $5$	$0$ $0$
								$4$ $4$	$0$ $0$	$0$ $0$

Bước 16

Hạ số tiếp theo của số bị chia xuống.

							$2$ $2$	$2$ $2$	.	$7$ $7$
$1$ $1$	$0$ $0$	$5$ $5$	$0$ $0$	$2$ $2$	$3$ $3$	$8$ $8$	$7$ $7$	$5$ $5$	.	$0$ $0$	$0$ $0$
			$-$ $-$	$2$ $2$	$1$ $1$	$0$ $0$	$0$ $0$
					$2$ $2$	$8$ $8$	$7$ $7$	$5$ $5$
				$-$ $-$	$2$ $2$	$1$ $1$	$0$ $0$	$0$ $0$
						$7$ $7$	$7$ $7$	$5$ $5$	$0$ $0$
						$-$ $-$	$7$ $7$	$3$ $3$	$5$ $5$	$0$ $0$
								$4$ $4$	$0$ $0$	$0$ $0$	$0$ $0$

Bước 17

Chia

4000

$4000$ cho

1050

$1050$ . Đặt chữ số này vào thương số trên biểu tượng chia.

							$2$ $2$	$2$ $2$	.	$7$ $7$	$3$ $3$
$1$ $1$	$0$ $0$	$5$ $5$	$0$ $0$	$2$ $2$	$3$ $3$	$8$ $8$	$7$ $7$	$5$ $5$	.	$0$ $0$	$0$ $0$
			$-$ $-$	$2$ $2$	$1$ $1$	$0$ $0$	$0$ $0$
					$2$ $2$	$8$ $8$	$7$ $7$	$5$ $5$
				$-$ $-$	$2$ $2$	$1$ $1$	$0$ $0$	$0$ $0$
						$7$ $7$	$7$ $7$	$5$ $5$	$0$ $0$
						$-$ $-$	$7$ $7$	$3$ $3$	$5$ $5$	$0$ $0$
								$4$ $4$	$0$ $0$	$0$ $0$	$0$ $0$

Bước 18

Nhân chữ số mới nhất của thương số

(3)

$(3)$ với số chia

1050

$1050$ .

							$2$ $2$	$2$ $2$	.	$7$ $7$	$3$ $3$
$1$ $1$	$0$ $0$	$5$ $5$	$0$ $0$	$2$ $2$	$3$ $3$	$8$ $8$	$7$ $7$	$5$ $5$	.	$0$ $0$	$0$ $0$
			$-$ $-$	$2$ $2$	$1$ $1$	$0$ $0$	$0$ $0$
					$2$ $2$	$8$ $8$	$7$ $7$	$5$ $5$
				$-$ $-$	$2$ $2$	$1$ $1$	$0$ $0$	$0$ $0$
						$7$ $7$	$7$ $7$	$5$ $5$	$0$ $0$
						$-$ $-$	$7$ $7$	$3$ $3$	$5$ $5$	$0$ $0$
								$4$ $4$	$0$ $0$	$0$ $0$	$0$ $0$
							$-$ $-$	$3$ $3$	$1$ $1$	$5$ $5$	$0$ $0$

Bước 19

Trừ

3150

$3150$ khỏi

4000

$4000$ .

							$2$ $2$	$2$ $2$	.	$7$ $7$	$3$ $3$
$1$ $1$	$0$ $0$	$5$ $5$	$0$ $0$	$2$ $2$	$3$ $3$	$8$ $8$	$7$ $7$	$5$ $5$	.	$0$ $0$	$0$ $0$
			$-$ $-$	$2$ $2$	$1$ $1$	$0$ $0$	$0$ $0$
					$2$ $2$	$8$ $8$	$7$ $7$	$5$ $5$
				$-$ $-$	$2$ $2$	$1$ $1$	$0$ $0$	$0$ $0$
						$7$ $7$	$7$ $7$	$5$ $5$	$0$ $0$
						$-$ $-$	$7$ $7$	$3$ $3$	$5$ $5$	$0$ $0$
								$4$ $4$	$0$ $0$	$0$ $0$	$0$ $0$
							$-$ $-$	$3$	$1$	$5$	$0$
									$8$	$5$	$0$

Bước 20

Thêm một

$0$ vào cuối số bị chia.

							$2$	$2$	.	$7$	$3$
$1$	$0$	$5$	$0$	$2$	$3$	$8$	$7$	$5$	.	$0$	$0$	$0$
			$-$	$2$	$1$	$0$	$0$
					$2$	$8$	$7$	$5$
				$-$	$2$	$1$	$0$	$0$
						$7$	$7$	$5$	$0$
						$-$	$7$	$3$	$5$	$0$
								$4$	$0$	$0$	$0$
							$-$	$3$	$1$	$5$	$0$
									$8$	$5$	$0$

Bước 21

Hạ số tiếp theo của số bị chia xuống.

							$2$	$2$	.	$7$	$3$
$1$	$0$	$5$	$0$	$2$	$3$	$8$	$7$	$5$	.	$0$	$0$	$0$
			$-$	$2$	$1$	$0$	$0$
					$2$	$8$	$7$	$5$
				$-$	$2$	$1$	$0$	$0$
						$7$	$7$	$5$	$0$
						$-$	$7$	$3$	$5$	$0$
								$4$	$0$	$0$	$0$
							$-$	$3$	$1$	$5$	$0$
									$8$	$5$	$0$	$0$

Bước 22

Chia

$8500$ cho

$1050$ . Đặt chữ số này vào thương số trên biểu tượng chia.

							$2$	$2$	.	$7$	$3$	$8$
$1$	$0$	$5$	$0$	$2$	$3$	$8$	$7$	$5$	.	$0$	$0$	$0$
			$-$	$2$	$1$	$0$	$0$
					$2$	$8$	$7$	$5$
				$-$	$2$	$1$	$0$	$0$
						$7$	$7$	$5$	$0$
						$-$	$7$	$3$	$5$	$0$
								$4$	$0$	$0$	$0$
							$-$	$3$	$1$	$5$	$0$
									$8$	$5$	$0$	$0$

Bước 23

Nhân chữ số mới nhất của thương số

$(8)$ với số chia

$1050$ .

							$2$	$2$	.	$7$	$3$	$8$
$1$	$0$	$5$	$0$	$2$	$3$	$8$	$7$	$5$	.	$0$	$0$	$0$
			$-$	$2$	$1$	$0$	$0$
					$2$	$8$	$7$	$5$
				$-$	$2$	$1$	$0$	$0$
						$7$	$7$	$5$	$0$
						$-$	$7$	$3$	$5$	$0$
								$4$	$0$	$0$	$0$
							$-$	$3$	$1$	$5$	$0$
									$8$	$5$	$0$	$0$
								$-$	$8$	$4$	$0$	$0$

Bước 24

Trừ

$8400$ khỏi

$8500$ .

							$2$	$2$	.	$7$	$3$	$8$
$1$	$0$	$5$	$0$	$2$	$3$	$8$	$7$	$5$	.	$0$	$0$	$0$
			$-$	$2$	$1$	$0$	$0$
					$2$	$8$	$7$	$5$
				$-$	$2$	$1$	$0$	$0$
						$7$	$7$	$5$	$0$
						$-$	$7$	$3$	$5$	$0$
								$4$	$0$	$0$	$0$
							$-$	$3$	$1$	$5$	$0$
									$8$	$5$	$0$	$0$
								$-$	$8$	$4$	$0$	$0$
										$1$	$0$	$0$

Bước 25

Kết quả của phép chia của

$238.75 \div 10.5$ là

$22.738 \dots$ .

$22.738 \dots$

							$2$	$2$	.	$7$	$3$
$1$	$0$	$5$	$0$	$2$	$3$	$8$	$7$	$5$	.	$0$	$0$	$0$
			$-$	$2$	$1$	$0$	$0$
					$2$	$8$	$7$	$5$
				$-$	$2$	$1$	$0$	$0$
						$7$	$7$	$5$	$0$
						$-$	$7$	$3$	$5$	$0$
								$4$	$0$	$0$	$0$
							$-$	$3$	$1$	$5$	$0$
									$8$	$5$	$0$

							$2$	$2$	.	$7$	$3$
$1$	$0$	$5$	$0$	$2$	$3$	$8$	$7$	$5$	.	$0$	$0$	$0$
			$-$	$2$	$1$	$0$	$0$
					$2$	$8$	$7$	$5$
				$-$	$2$	$1$	$0$	$0$
						$7$	$7$	$5$	$0$
						$-$	$7$	$3$	$5$	$0$
								$4$	$0$	$0$	$0$
							$-$	$3$	$1$	$5$	$0$
									$8$	$5$	$0$	$0$

							$2$	$2$	.	$7$	$3$	$8$
$1$	$0$	$5$	$0$	$2$	$3$	$8$	$7$	$5$	.	$0$	$0$	$0$
			$-$	$2$	$1$	$0$	$0$
					$2$	$8$	$7$	$5$
				$-$	$2$	$1$	$0$	$0$
						$7$	$7$	$5$	$0$
						$-$	$7$	$3$	$5$	$0$
								$4$	$0$	$0$	$0$
							$-$	$3$	$1$	$5$	$0$
									$8$	$5$	$0$	$0$

							$2$	$2$	.	$7$	$3$	$8$
$1$	$0$	$5$	$0$	$2$	$3$	$8$	$7$	$5$	.	$0$	$0$	$0$
			$-$	$2$	$1$	$0$	$0$
					$2$	$8$	$7$	$5$
				$-$	$2$	$1$	$0$	$0$
						$7$	$7$	$5$	$0$
						$-$	$7$	$3$	$5$	$0$
								$4$	$0$	$0$	$0$
							$-$	$3$	$1$	$5$	$0$
									$8$	$5$	$0$	$0$
								$-$	$8$	$4$	$0$	$0$

							$2$	$2$	.	$7$	$3$	$8$
$1$	$0$	$5$	$0$	$2$	$3$	$8$	$7$	$5$	.	$0$	$0$	$0$
			$-$	$2$	$1$	$0$	$0$
					$2$	$8$	$7$	$5$
				$-$	$2$	$1$	$0$	$0$
						$7$	$7$	$5$	$0$
						$-$	$7$	$3$	$5$	$0$
								$4$	$0$	$0$	$0$
							$-$	$3$	$1$	$5$	$0$
									$8$	$5$	$0$	$0$
								$-$	$8$	$4$	$0$	$0$
										$1$	$0$	$0$

							$2$	$2$	.	$7$	$3$
$1$	$0$	$5$	$0$	$2$	$3$	$8$	$7$	$5$	.	$0$	$0$	$0$
			$-$	$2$	$1$	$0$	$0$
					$2$	$8$	$7$	$5$
				$-$	$2$	$1$	$0$	$0$
						$7$	$7$	$5$	$0$
						$-$	$7$	$3$	$5$	$0$
								$4$	$0$	$0$	$0$
							$-$	$3$	$1$	$5$	$0$
									$8$	$5$	$0$

							$2$	$2$	.	$7$	$3$
$1$	$0$	$5$	$0$	$2$	$3$	$8$	$7$	$5$	.	$0$	$0$	$0$
			$-$	$2$	$1$	$0$	$0$
					$2$	$8$	$7$	$5$
				$-$	$2$	$1$	$0$	$0$
						$7$	$7$	$5$	$0$
						$-$	$7$	$3$	$5$	$0$
								$4$	$0$	$0$	$0$
							$-$	$3$	$1$	$5$	$0$
									$8$	$5$	$0$	$0$

							$2$	$2$	.	$7$	$3$	$8$
$1$	$0$	$5$	$0$	$2$	$3$	$8$	$7$	$5$	.	$0$	$0$	$0$
			$-$	$2$	$1$	$0$	$0$
					$2$	$8$	$7$	$5$
				$-$	$2$	$1$	$0$	$0$
						$7$	$7$	$5$	$0$
						$-$	$7$	$3$	$5$	$0$
								$4$	$0$	$0$	$0$
							$-$	$3$	$1$	$5$	$0$
									$8$	$5$	$0$	$0$

							$2$	$2$	.	$7$	$3$	$8$
$1$	$0$	$5$	$0$	$2$	$3$	$8$	$7$	$5$	.	$0$	$0$	$0$
			$-$	$2$	$1$	$0$	$0$
					$2$	$8$	$7$	$5$
				$-$	$2$	$1$	$0$	$0$
						$7$	$7$	$5$	$0$
						$-$	$7$	$3$	$5$	$0$
								$4$	$0$	$0$	$0$
							$-$	$3$	$1$	$5$	$0$
									$8$	$5$	$0$	$0$
								$-$	$8$	$4$	$0$	$0$

							$2$	$2$	.	$7$	$3$	$8$
$1$	$0$	$5$	$0$	$2$	$3$	$8$	$7$	$5$	.	$0$	$0$	$0$
			$-$	$2$	$1$	$0$	$0$
					$2$	$8$	$7$	$5$
				$-$	$2$	$1$	$0$	$0$
						$7$	$7$	$5$	$0$
						$-$	$7$	$3$	$5$	$0$
								$4$	$0$	$0$	$0$
							$-$	$3$	$1$	$5$	$0$
									$8$	$5$	$0$	$0$
								$-$	$8$	$4$	$0$	$0$
										$1$	$0$	$0$

							$2$	$2$	.	$7$	$3$
$1$	$0$	$5$	$0$	$2$	$3$	$8$	$7$	$5$	.	$0$	$0$	$0$
			$-$	$2$	$1$	$0$	$0$
					$2$	$8$	$7$	$5$
				$-$	$2$	$1$	$0$	$0$
						$7$	$7$	$5$	$0$
						$-$	$7$	$3$	$5$	$0$
								$4$	$0$	$0$	$0$
							$-$	$3$	$1$	$5$	$0$
									$8$	$5$	$0$

							$2$	$2$	.	$7$	$3$
$1$	$0$	$5$	$0$	$2$	$3$	$8$	$7$	$5$	.	$0$	$0$	$0$
			$-$	$2$	$1$	$0$	$0$
					$2$	$8$	$7$	$5$
				$-$	$2$	$1$	$0$	$0$
						$7$	$7$	$5$	$0$
						$-$	$7$	$3$	$5$	$0$
								$4$	$0$	$0$	$0$
							$-$	$3$	$1$	$5$	$0$
									$8$	$5$	$0$	$0$

							$2$	$2$	.	$7$	$3$	$8$
$1$	$0$	$5$	$0$	$2$	$3$	$8$	$7$	$5$	.	$0$	$0$	$0$
			$-$	$2$	$1$	$0$	$0$
					$2$	$8$	$7$	$5$
				$-$	$2$	$1$	$0$	$0$
						$7$	$7$	$5$	$0$
						$-$	$7$	$3$	$5$	$0$
								$4$	$0$	$0$	$0$
							$-$	$3$	$1$	$5$	$0$
									$8$	$5$	$0$	$0$

							$2$	$2$	.	$7$	$3$	$8$
$1$	$0$	$5$	$0$	$2$	$3$	$8$	$7$	$5$	.	$0$	$0$	$0$
			$-$	$2$	$1$	$0$	$0$
					$2$	$8$	$7$	$5$
				$-$	$2$	$1$	$0$	$0$
						$7$	$7$	$5$	$0$
						$-$	$7$	$3$	$5$	$0$
								$4$	$0$	$0$	$0$
							$-$	$3$	$1$	$5$	$0$
									$8$	$5$	$0$	$0$
								$-$	$8$	$4$	$0$	$0$

							$2$	$2$	.	$7$	$3$	$8$
$1$	$0$	$5$	$0$	$2$	$3$	$8$	$7$	$5$	.	$0$	$0$	$0$
			$-$	$2$	$1$	$0$	$0$
					$2$	$8$	$7$	$5$
				$-$	$2$	$1$	$0$	$0$
						$7$	$7$	$5$	$0$
						$-$	$7$	$3$	$5$	$0$
								$4$	$0$	$0$	$0$
							$-$	$3$	$1$	$5$	$0$
									$8$	$5$	$0$	$0$
								$-$	$8$	$4$	$0$	$0$
										$1$	$0$	$0$