Preparazione all'algebra Esempi

$4.3 \div 1.8$

Passaggio 1

Imposta il problema della divisione nel formato in colonna.

$1$

$8$

$4$

$3$

Passaggio 2

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

$1$

$8$

$4$

$3$

Passaggio 3

Dividi $43$ per $18$ . Posiziona questa cifra nel quoziente sopra il simbolo di divisione.

			$2$
$1$	$8$	$4$	$3$

Passaggio 4

Moltiplica la cifra quoziente appena ottenuta $(2)$ per il divisore $18$ .

			$2$
$1$	$8$	$4$	$3$
	$-$	$3$	$6$

Passaggio 5

Sottrai $36$ da $43$ .

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

Passaggio 6

Aggiungi $0$ alla fine del dividendo.

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

Passaggio 7

Abbassa il numero successivo del dividendo.

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

Passaggio 8

Dividi $70$ per $18$ . Posiziona questa cifra nel quoziente sopra il simbolo di divisione.

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

Passaggio 9

Moltiplica la cifra quoziente appena ottenuta $(3)$ per il divisore $18$ .

			$2$	.	$3$
$1$	$8$	$4$	$3$	.	$0$
	$-$	$3$	$6$
			$7$	$0$
			$-$	$5$	$4$

Passaggio 10

Sottrai $54$ da $70$ .

			$2$	.	$3$
$1$	$8$	$4$	$3$	.	$0$
	$-$	$3$	$6$
			$7$	$0$
			$-$	$5$	$4$
				$1$	$6$

Passaggio 11

Aggiungi $0$ alla fine del dividendo.

			$2$	.	$3$
$1$	$8$	$4$	$3$	.	$0$	$0$
	$-$	$3$	$6$
			$7$	$0$
			$-$	$5$	$4$
				$1$	$6$

Passaggio 12

Abbassa il numero successivo del dividendo.

			$2$	.	$3$
$1$	$8$	$4$	$3$	.	$0$	$0$
	$-$	$3$	$6$
			$7$	$0$
			$-$	$5$	$4$
				$1$	$6$	$0$

Passaggio 13

Dividi $160$ per $18$ . Posiziona questa cifra nel quoziente sopra il simbolo di divisione.

			$2$	.	$3$	$8$
$1$	$8$	$4$	$3$	.	$0$	$0$
	$-$	$3$	$6$
			$7$	$0$
			$-$	$5$	$4$
				$1$	$6$	$0$

Passaggio 14

Moltiplica la cifra quoziente appena ottenuta $(8)$ per il divisore $18$ .

			$2$	.	$3$	$8$
$1$	$8$	$4$	$3$	.	$0$	$0$
	$-$	$3$	$6$
			$7$	$0$
			$-$	$5$	$4$
				$1$	$6$	$0$
			$-$	$1$	$4$	$4$

Passaggio 15

Sottrai $144$ da $160$ .

			$2$	.	$3$	$8$
$1$	$8$	$4$	$3$	.	$0$	$0$
	$-$	$3$	$6$
			$7$	$0$
			$-$	$5$	$4$
				$1$	$6$	$0$
			$-$	$1$	$4$	$4$
					$1$	$6$

Passaggio 16

Aggiungi $0$ alla fine del dividendo.

			$2$	.	$3$	$8$
$1$	$8$	$4$	$3$	.	$0$	$0$	$0$
	$-$	$3$	$6$
			$7$	$0$
			$-$	$5$	$4$
				$1$	$6$	$0$
			$-$	$1$	$4$	$4$
					$1$	$6$

Passaggio 17

Abbassa il numero successivo del dividendo.

			$2$	.	$3$	$8$
$1$	$8$	$4$	$3$	.	$0$	$0$	$0$
	$-$	$3$	$6$
			$7$	$0$
			$-$	$5$	$4$
				$1$	$6$	$0$
			$-$	$1$	$4$	$4$
					$1$	$6$	$0$

Passaggio 18

Dividi $160$ per $18$ . Posiziona questa cifra nel quoziente sopra il simbolo di divisione.

			$2$	.	$3$	$8$	$8$
$1$	$8$	$4$	$3$	.	$0$	$0$	$0$
	$-$	$3$	$6$
			$7$	$0$
			$-$	$5$	$4$
				$1$	$6$	$0$
			$-$	$1$	$4$	$4$
					$1$	$6$	$0$

Passaggio 19

Moltiplica la cifra quoziente appena ottenuta $(8)$ per il divisore $18$ .

			$2$	.	$3$	$8$	$8$
$1$	$8$	$4$	$3$	.	$0$	$0$	$0$
	$-$	$3$	$6$
			$7$	$0$
			$-$	$5$	$4$
				$1$	$6$	$0$
			$-$	$1$	$4$	$4$
					$1$	$6$	$0$
				$-$	$1$	$4$	$4$

Passaggio 20

Sottrai $144$ da $160$ .

			$2$	.	$3$	$8$	$8$
$1$	$8$	$4$	$3$	.	$0$	$0$	$0$
	$-$	$3$	$6$
			$7$	$0$
			$-$	$5$	$4$
				$1$	$6$	$0$
			$-$	$1$	$4$	$4$
					$1$	$6$	$0$
				$-$	$1$	$4$	$4$
						$1$	$6$

Passaggio 21

Il risultato della divisione di $4.3 \div 1.8$ è $2.388 \dots$ .

$2.388 \dots$

			$2$	.	$3$	$8$
$1$	$8$	$4$	$3$	.	$0$	$0$
	$-$	$3$	$6$
			$7$	$0$
			$-$	$5$	$4$
				$1$	$6$	$0$

			$2$	.	$3$	$8$
$1$	$8$	$4$	$3$	.	$0$	$0$
	$-$	$3$	$6$
			$7$	$0$
			$-$	$5$	$4$
				$1$	$6$	$0$
			$-$	$1$	$4$	$4$

			$2$	.	$3$	$8$
$1$	$8$	$4$	$3$	.	$0$	$0$
	$-$	$3$	$6$
			$7$	$0$
			$-$	$5$	$4$
				$1$	$6$	$0$
			$-$	$1$	$4$	$4$
					$1$	$6$

			$2$	.	$3$	$8$
$1$	$8$	$4$	$3$	.	$0$	$0$	$0$
	$-$	$3$	$6$
			$7$	$0$
			$-$	$5$	$4$
				$1$	$6$	$0$
			$-$	$1$	$4$	$4$
					$1$	$6$

			$2$	.	$3$	$8$
$1$	$8$	$4$	$3$	.	$0$	$0$	$0$
	$-$	$3$	$6$
			$7$	$0$
			$-$	$5$	$4$
				$1$	$6$	$0$
			$-$	$1$	$4$	$4$
					$1$	$6$	$0$

			$2$	.	$3$	$8$	$8$
$1$	$8$	$4$	$3$	.	$0$	$0$	$0$
	$-$	$3$	$6$
			$7$	$0$
			$-$	$5$	$4$
				$1$	$6$	$0$
			$-$	$1$	$4$	$4$
					$1$	$6$	$0$

			$2$	.	$3$	$8$	$8$
$1$	$8$	$4$	$3$	.	$0$	$0$	$0$
	$-$	$3$	$6$
			$7$	$0$
			$-$	$5$	$4$
				$1$	$6$	$0$
			$-$	$1$	$4$	$4$
					$1$	$6$	$0$
				$-$	$1$	$4$	$4$

			$2$	.	$3$	$8$	$8$
$1$	$8$	$4$	$3$	.	$0$	$0$	$0$
	$-$	$3$	$6$
			$7$	$0$
			$-$	$5$	$4$
				$1$	$6$	$0$
			$-$	$1$	$4$	$4$
					$1$	$6$	$0$
				$-$	$1$	$4$	$4$
						$1$	$6$

			$2$	.	$3$	$8$
$1$	$8$	$4$	$3$	.	$0$	$0$
	$-$	$3$	$6$
			$7$	$0$
			$-$	$5$	$4$
				$1$	$6$	$0$

			$2$	.	$3$	$8$
$1$	$8$	$4$	$3$	.	$0$	$0$
	$-$	$3$	$6$
			$7$	$0$
			$-$	$5$	$4$
				$1$	$6$	$0$
			$-$	$1$	$4$	$4$

			$2$	.	$3$	$8$
$1$	$8$	$4$	$3$	.	$0$	$0$
	$-$	$3$	$6$
			$7$	$0$
			$-$	$5$	$4$
				$1$	$6$	$0$
			$-$	$1$	$4$	$4$
					$1$	$6$

			$2$	.	$3$	$8$
$1$	$8$	$4$	$3$	.	$0$	$0$	$0$
	$-$	$3$	$6$
			$7$	$0$
			$-$	$5$	$4$
				$1$	$6$	$0$
			$-$	$1$	$4$	$4$
					$1$	$6$

			$2$	.	$3$	$8$
$1$	$8$	$4$	$3$	.	$0$	$0$	$0$
	$-$	$3$	$6$
			$7$	$0$
			$-$	$5$	$4$
				$1$	$6$	$0$
			$-$	$1$	$4$	$4$
					$1$	$6$	$0$

			$2$	.	$3$	$8$	$8$
$1$	$8$	$4$	$3$	.	$0$	$0$	$0$
	$-$	$3$	$6$
			$7$	$0$
			$-$	$5$	$4$
				$1$	$6$	$0$
			$-$	$1$	$4$	$4$
					$1$	$6$	$0$

			$2$	.	$3$	$8$	$8$
$1$	$8$	$4$	$3$	.	$0$	$0$	$0$
	$-$	$3$	$6$
			$7$	$0$
			$-$	$5$	$4$
				$1$	$6$	$0$
			$-$	$1$	$4$	$4$
					$1$	$6$	$0$
				$-$	$1$	$4$	$4$

			$2$	.	$3$	$8$	$8$
$1$	$8$	$4$	$3$	.	$0$	$0$	$0$
	$-$	$3$	$6$
			$7$	$0$
			$-$	$5$	$4$
				$1$	$6$	$0$
			$-$	$1$	$4$	$4$
					$1$	$6$	$0$
				$-$	$1$	$4$	$4$
						$1$	$6$

			$2$	.	$3$	$8$
$1$	$8$	$4$	$3$	.	$0$	$0$
	$-$	$3$	$6$
			$7$	$0$
			$-$	$5$	$4$
				$1$	$6$	$0$

			$2$	.	$3$	$8$
$1$	$8$	$4$	$3$	.	$0$	$0$
	$-$	$3$	$6$
			$7$	$0$
			$-$	$5$	$4$
				$1$	$6$	$0$
			$-$	$1$	$4$	$4$

			$2$	.	$3$	$8$
$1$	$8$	$4$	$3$	.	$0$	$0$
	$-$	$3$	$6$
			$7$	$0$
			$-$	$5$	$4$
				$1$	$6$	$0$
			$-$	$1$	$4$	$4$
					$1$	$6$

			$2$	.	$3$	$8$
$1$	$8$	$4$	$3$	.	$0$	$0$	$0$
	$-$	$3$	$6$
			$7$	$0$
			$-$	$5$	$4$
				$1$	$6$	$0$
			$-$	$1$	$4$	$4$
					$1$	$6$

			$2$	.	$3$	$8$
$1$	$8$	$4$	$3$	.	$0$	$0$	$0$
	$-$	$3$	$6$
			$7$	$0$
			$-$	$5$	$4$
				$1$	$6$	$0$
			$-$	$1$	$4$	$4$
					$1$	$6$	$0$

			$2$	.	$3$	$8$	$8$
$1$	$8$	$4$	$3$	.	$0$	$0$	$0$
	$-$	$3$	$6$
			$7$	$0$
			$-$	$5$	$4$
				$1$	$6$	$0$
			$-$	$1$	$4$	$4$
					$1$	$6$	$0$

			$2$	.	$3$	$8$	$8$
$1$	$8$	$4$	$3$	.	$0$	$0$	$0$
	$-$	$3$	$6$
			$7$	$0$
			$-$	$5$	$4$
				$1$	$6$	$0$
			$-$	$1$	$4$	$4$
					$1$	$6$	$0$
				$-$	$1$	$4$	$4$

			$2$	.	$3$	$8$	$8$
$1$	$8$	$4$	$3$	.	$0$	$0$	$0$
	$-$	$3$	$6$
			$7$	$0$
			$-$	$5$	$4$
				$1$	$6$	$0$
			$-$	$1$	$4$	$4$
					$1$	$6$	$0$
				$-$	$1$	$4$	$4$
						$1$	$6$