Multiplication Number Stories
LI: To use multiplication to solve story problems.
a) Hohepa worked in a store for 16 hours a week for 7 weeks over Christmas. Show how to work out how many hours he worked over that time.
16 x 7 =
6 x 7 = 42
10 x 7 = 70
112 hours
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b) Paddy worked 14 hours per day as a security guard. He worked for 23 days.
Show how to work out how many hours he worked over that time.
14x23=105
4x23=82
23x10=23
23+82=105
105 hours
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c) James and Maraea dug 32 post holes per day on their farm. They worked for 27 days. Show how to work out how many post holes they dug.
32x27=864
2x27=54
30x27=810
810+54=862
864 post holes
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