Use assosative property to find 2×30

RKI asked Jun 25, 2023

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6 votes

RKI asked Jun 25, 2023

by RKI

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23 votes

You have to use associative property to find 2*30

Two times 30 can be expressed as 30+30

$2\cdot30=30+30=60$

30 can be expressed as 2*15

So another way of solving this calculation is by doing

$2(2\cdot15)=60$

$(2\cdot2)\cdot15=4\cdot15=60$

FJCG answered Jun 30, 2023

by FJCG

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