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Mental multiplication worksheet
Work these questions out in your head and discuss with your group how you do them.
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1. |
4
+ 4 + 4 + 4 + 4 = |
6. |
30 x 5 = |
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2. |
6
x 0 x 17 x 83 = |
7. |
8 x 50 = |
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3. |
20
x 1000 = |
8. |
Double 33 |
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4. |
20
x 7 = |
9. |
99 x 3 = |
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5. |
20 x 14 = |
10. |
Double 195= |
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11. |
Nick
worked out that 9 x 17 = 153. How can he easily work out 17 x
9? |
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12. |
Rachel
worked out that 13 x 13 = 169. How can she work out 13 x 14 easily? |
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13. |
How
many seats in a cinema if there are 20 seats in each row and 20
rows? |
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14. |
How
many matches are there in 5 boxes, if each box holds 50? |
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15. |
How
many days in 3 weeks? |