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Multiplying a 3 digit number by a 1 digit number Using the grid method.

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Presentation on theme: "Multiplying a 3 digit number by a 1 digit number Using the grid method."— Presentation transcript:

1 Multiplying a 3 digit number by a 1 digit number Using the grid method

2 First, split the 3 digit number into hundreds, tens and units. For example; 642 is split up as 600, 4O and is split up as 200, 80 and is split up as 300, 50 and 6

3 Then put the hundreds, tens and units into the top part of the grid and the number that you are multiplying by down the side of the grid. For example: 642 x 7: Then multiply the hundreds (600) by the number on the side (7): Then multiply the tens (40) by the number on the side (7): x x x

4 And then multiply the units (2) by the number on the side (7): Finally, add the 3 answers (4200, 280 and 14) together: 642 x 7 = = 4494 x


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