Presentation is loading. Please wait.

Presentation is loading. Please wait.

1 Divide large numbers 6 3 9 Example 639 ÷ 3 Set out the working like this: 3 2 Then the tens Start with the hundreds 639 ÷ 3 = 213 3 ÷ 3 = 1 6 ÷ 3 = 2.

Similar presentations


Presentation on theme: "1 Divide large numbers 6 3 9 Example 639 ÷ 3 Set out the working like this: 3 2 Then the tens Start with the hundreds 639 ÷ 3 = 213 3 ÷ 3 = 1 6 ÷ 3 = 2."— Presentation transcript:

1 1 Divide large numbers 6 3 9 Example 639 ÷ 3 Set out the working like this: 3 2 Then the tens Start with the hundreds 639 ÷ 3 = 213 3 ÷ 3 = 1 6 ÷ 3 = 2 Then the units 9 ÷ 3 = 3 3

2 9 Divide large numbers 7 8 5 Example 785 ÷ 2 Sometimes there are ‘left overs’! 2 3 Then divide the units First divide the hundreds 785 ÷ 2 = 392 r 1 18 tens ÷ 2 = 9 tens 7 ÷ 2 = 3 and 1 hundred left over The left over hundred gives another 10 tens 1 5 ÷ 2 = 2 and 1 left over 2 The left over at the end is called a ‘remainder’

3 7 Divide large numbers 5 8 9 Example 589 ÷ 8 Here is another example 8 There are no 8s in 5 589 ÷ 8 = 73 r 5 58 ÷ 8 = 7 and 2 tens left over The 5 hundreds are left over and give 50 more tens 5 29 ÷ 8 = 3 and 5 left over 3 r 5 2

4 7 Divide large numbers Example 86 435 ÷ 5 For larger numbers just keep repeating the process 1 35 ÷ 5 = 7 86 435 ÷ 5 = 17 287 8 ÷ 5 = 1 with 3 left over 8 6 4 3 5 5 3 36 ÷ 5 = 7 with 1 left over 1 14 ÷ 5 = 2 with 4 left over 2 4 43 ÷ 5 = 8 with 3 left over 8 3 7

5 5 Divide large numbers Example 3526 ÷ 7 Don’t put zeros at the front, but include them in the middle 3526 ÷ 7 = 503 r 5 There are no 7s in 3 3 5 2 6 7 3 Don’t put a zero on top just carry the 3 35 ÷ 7 = 5 0 2 Write a zero on top and carry 2 3 r 5 There are no 7s in 2 26 ÷ 7 = 3 r 5

6 Divide Numbers 1) 428 ÷ 2 2) 564 ÷ 2 3) 835 ÷ 5 4) 714 ÷ 3 5) 618 ÷ 4 6) 325 ÷ 6 7) 9541 ÷ 7 8) 1563 ÷ 8 9) 9126 ÷ 9 10) 2463 ÷ 5 11) 81 252 ÷ 3 12) 93 825 ÷ 4

7 Try these on paper, then left click to check your answers. Divide Numbers 214 1) 428 ÷ 2 282 167 238 154 r 2 54 r 1 2) 564 ÷ 2 3) 835 ÷ 5 4) 714 ÷ 3 5) 618 ÷ 4 6) 325 ÷ 6 1363 7) 9541 ÷ 7 195 r 3 1014 492 r 3 27 084 23 456 r 1 8) 1563 ÷ 8 9) 9126 ÷ 9 10) 2463 ÷ 5 11) 81 252 ÷ 3 12) 93 825 ÷ 4

8 Long Division To divide by larger numbers, work out the values you need 16 32 48 4 × 16 = 2 Example 672 ÷ 16 4 672 ÷ 16 = 42 6 7 2 16 3 To work out how many 16s there are in 67 64

9 Long Division 7 Example 2166 ÷ 38 5 2166 ÷ 38 = 57 2 1 6 6 38 38 is near 40 and 40 × 5 = 200 You may prefer to estimate the answer then check, as shown below: So try 38 × 5 3 8 × 5 0 4 1 9 40 × 7 = 280 So try 38 × 7 3 8 × 7 6 5 2 6 2 1 6 - 1 9 0 6 2 26

10 Long Division 8 r 3 Example 4137 ÷ 53 7 4137 ÷ 53 = 78 r 3 4 1 3 7 53 42 53 is near 50 and 50 × 8 = 400 Your estimate may not be right every time. So try 53 × 8 5 3 × 8 4 2 4 2 too big So try 53 × 7 5 3 × 7 1 2 3 7 4 1 3 - 3 7 1 2 4 We already know 53 × 8 = 424

11 Try these on paper, then left click to check your answers. Long Division 46 1) 552 ÷ 12 25 63 81 39 47 2) 375 ÷ 15 3) 1197 ÷ 19 4) 2025 ÷ 25 5) 936 ÷ 24 6) 1363 ÷ 29 58 7) 1856 ÷ 32 68 r 6 85 r 5 74 r 10 104 r 13 143 r 73 8) 2386 ÷ 35 9) 4000 ÷ 47 10) 3858 ÷ 52 11) 8125 ÷ 78 12) 12 800 ÷ 89


Download ppt "1 Divide large numbers 6 3 9 Example 639 ÷ 3 Set out the working like this: 3 2 Then the tens Start with the hundreds 639 ÷ 3 = 213 3 ÷ 3 = 1 6 ÷ 3 = 2."

Similar presentations


Ads by Google