Toán cơ bản Ví dụ

$238.75 \div 10.5$

Bước 1

Lập bài toán chia ở dạng phép chia số lớn.

$1$

$0$

$5$

$0$

$2$

$3$

$8$

$7$

$5$

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.

$1$

$0$

$5$

$0$

$2$

$3$

$8$

$7$

$5$

Bước 3

Chia $2387$ cho $1050$ . Đặt chữ số này vào thương số trên biểu tượng chia.

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

Bước 4

Nhân chữ số mới nhất của thương số $(2)$ với số chia $1050$ .

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

Bước 5

Trừ $2100$ khỏi $2387$ .

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

Bước 6

Hạ số tiếp theo của số bị chia xuống.

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

Bước 7

Chia $2875$ cho $1050$ . Đặt chữ số này vào thương số trên biểu tượng chia.

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

Bước 8

Nhân chữ số mới nhất của thương số $(2)$ với số chia $1050$ .

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

Bước 9

Trừ $2100$ khỏi $2875$ .

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

Bước 10

Thêm một $0$ vào cuối số bị chia.

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

Bước 11

Hạ số tiếp theo của số bị chia xuống.

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

Bước 12

Chia $7750$ cho $1050$ . Đặt chữ số này vào thương số trên biểu tượng chia.

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

Bước 13

Nhân chữ số mới nhất của thương số $(7)$ với số chia $1050$ .

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

Bước 14

Trừ $7350$ khỏi $7750$ .

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

Bước 15

Thêm một $0$ vào cuối số bị chia.

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

Bước 16

Hạ số tiếp theo của số bị chia xuống.

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

Bước 17

Chia $4000$ cho $1050$ . Đặt chữ số này vào thương số trên biểu tượng chia.

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

Bước 18

Nhân chữ số mới nhất của thương số $(3)$ với số chia $1050$ .

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

Bước 19

Trừ $3150$ khỏi $4000$ .

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

Bước 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 $22.738 \dots$ .

$22.738 \dots$

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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