Preparazione all'algebra Esempi

$\frac{77}{3.8}$

Passaggio 1

Imposta il problema della divisione nel formato in colonna.

$3$

$8$

$7$

Passaggio 2

Sposta il decimale dello stesso numero di posti in entrambi i numeri finché il divisore non è un numero intero.

$3$

$8$

$7$

$0$

Passaggio 3

Dividi $77$ per $38$ . Posiziona questa cifra nel quoziente sopra il simbolo di divisione.

			$2$
$3$	$8$	$7$	$7$	$0$

Passaggio 4

Moltiplica la cifra quoziente appena ottenuta $(2)$ per il divisore $38$ .

			$2$
$3$	$8$	$7$	$7$	$0$
	$-$	$7$	$6$

Passaggio 5

Sottrai $76$ da $77$ .

			$2$
$3$	$8$	$7$	$7$	$0$
	$-$	$7$	$6$
			$1$

Passaggio 6

Abbassa il numero successivo del dividendo.

			$2$
$3$	$8$	$7$	$7$	$0$
	$-$	$7$	$6$
			$1$	$0$

Passaggio 7

Dividi $10$ per $38$ . Posiziona questa cifra nel quoziente sopra il simbolo di divisione.

			$2$	$0$
$3$	$8$	$7$	$7$	$0$
	$-$	$7$	$6$
			$1$	$0$

Passaggio 8

Moltiplica la cifra quoziente appena ottenuta $(0)$ per il divisore $38$ .

			$2$	$0$
$3$	$8$	$7$	$7$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$

Passaggio 9

Sottrai $0$ da $10$ .

			$2$	$0$
$3$	$8$	$7$	$7$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$

Passaggio 10

Aggiungi $0$ alla fine del dividendo.

			$2$	$0$
$3$	$8$	$7$	$7$	$0$	.	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$

Passaggio 11

Abbassa il numero successivo del dividendo.

			$2$	$0$
$3$	$8$	$7$	$7$	$0$	.	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$

Passaggio 12

Dividi $100$ per $38$ . Posiziona questa cifra nel quoziente sopra il simbolo di divisione.

			$2$	$0$	.	$2$
$3$	$8$	$7$	$7$	$0$	.	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$

Passaggio 13

Moltiplica la cifra quoziente appena ottenuta $(2)$ per il divisore $38$ .

			$2$	$0$	.	$2$
$3$	$8$	$7$	$7$	$0$	.	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$

Passaggio 14

Sottrai $76$ da $100$ .

			$2$	$0$	.	$2$
$3$	$8$	$7$	$7$	$0$	.	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$

Passaggio 15

Aggiungi $0$ alla fine del dividendo.

			$2$	$0$	.	$2$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$

Passaggio 16

Abbassa il numero successivo del dividendo.

			$2$	$0$	.	$2$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$

Passaggio 17

Dividi $240$ per $38$ . Posiziona questa cifra nel quoziente sopra il simbolo di divisione.

			$2$	$0$	.	$2$	$6$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$

Passaggio 18

Moltiplica la cifra quoziente appena ottenuta $(6)$ per il divisore $38$ .

			$2$	$0$	.	$2$	$6$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$

Passaggio 19

Sottrai $228$ da $240$ .

			$2$	$0$	.	$2$	$6$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$
						$1$	$2$

Passaggio 20

Aggiungi $0$ alla fine del dividendo.

			$2$	$0$	.	$2$	$6$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$
						$1$	$2$

Passaggio 21

Abbassa il numero successivo del dividendo.

			$2$	$0$	.	$2$	$6$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$
						$1$	$2$	$0$

Passaggio 22

Dividi $120$ per $38$ . Posiziona questa cifra nel quoziente sopra il simbolo di divisione.

			$2$	$0$	.	$2$	$6$	$3$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$
						$1$	$2$	$0$

Passaggio 23

Moltiplica la cifra quoziente appena ottenuta $(3)$ per il divisore $38$ .

			$2$	$0$	.	$2$	$6$	$3$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$
						$1$	$2$	$0$
					$-$	$1$	$1$	$4$

Passaggio 24

Sottrai $114$ da $120$ .

			$2$	$0$	.	$2$	$6$	$3$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$
						$1$	$2$	$0$
					$-$	$1$	$1$	$4$
								$6$

Passaggio 25

Il risultato della divisione di $\frac{77}{3.8}$ è $20.263 \dots$ .

$20.263 \dots$

			$2$	$0$	.	$2$
$3$	$8$	$7$	$7$	$0$	.	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$

			$2$	$0$	.	$2$
$3$	$8$	$7$	$7$	$0$	.	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$

			$2$	$0$	.	$2$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$

			$2$	$0$	.	$2$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$

			$2$	$0$	.	$2$	$6$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$

			$2$	$0$	.	$2$	$6$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$

			$2$	$0$	.	$2$	$6$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$
						$1$	$2$

			$2$	$0$	.	$2$	$6$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$
						$1$	$2$

			$2$	$0$	.	$2$	$6$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$
						$1$	$2$	$0$

			$2$	$0$	.	$2$	$6$	$3$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$
						$1$	$2$	$0$

			$2$	$0$	.	$2$
$3$	$8$	$7$	$7$	$0$	.	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$

			$2$	$0$	.	$2$
$3$	$8$	$7$	$7$	$0$	.	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$

			$2$	$0$	.	$2$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$

			$2$	$0$	.	$2$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$

			$2$	$0$	.	$2$	$6$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$

			$2$	$0$	.	$2$	$6$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$

			$2$	$0$	.	$2$	$6$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$
						$1$	$2$

			$2$	$0$	.	$2$	$6$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$
						$1$	$2$

			$2$	$0$	.	$2$	$6$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$
						$1$	$2$	$0$

			$2$	$0$	.	$2$	$6$	$3$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$
						$1$	$2$	$0$

			$2$	$0$	.	$2$
$3$	$8$	$7$	$7$	$0$	.	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$

			$2$	$0$	.	$2$
$3$	$8$	$7$	$7$	$0$	.	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$

			$2$	$0$	.	$2$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$

			$2$	$0$	.	$2$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$

			$2$	$0$	.	$2$	$6$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$

			$2$	$0$	.	$2$	$6$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$

			$2$	$0$	.	$2$	$6$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$
						$1$	$2$

			$2$	$0$	.	$2$	$6$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$
						$1$	$2$

			$2$	$0$	.	$2$	$6$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$
						$1$	$2$	$0$

			$2$	$0$	.	$2$	$6$	$3$
$3$	$8$	$7$	$7$	$0$	.	$0$	$0$	$0$
	$-$	$7$	$6$
			$1$	$0$
		$-$		$0$
			$1$	$0$	$0$
			$-$		$7$	$6$
					$2$	$4$	$0$
				$-$	$2$	$2$	$8$
						$1$	$2$	$0$