How to multiply using the grid method with step by step examples. Homework help for kids learning Maths in Key Stage 2 (KS2), Year 4 in Primary School.
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Multiplying by the grid method
To work out 45 x 5 break the 2-digit number up and multiply by them by the other number.
40 x 5 = 200
2 x 5 = 10
Add the answers together.
200 + 10 = 210
So
42 x 5 = 210
If you have a bigger numbers split them into a table to work out the answer. Try 52 x 13.
| x | 50 | 2 |
| 10 | 500 | 20 |
| 3 | 150 | 6 |
Now add the columns together
| x | 50 | 2 |
| 10 | 500 | 20 |
| 3 | 150 | 6 |
| 650 | 26 |
Now add up the two number in red.
650 + 26 = 676
So
52 x 13 = 676