4 × 5 + 3 × 4 = 4 × 5 + 4 × 3 (Commutative property of multiplication) = 4 × (5 + 3) = 4 × (3 + 5) (Commutative property of addition) ...

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Distributivity

4 × 5+3 × 4=4...

Question

4 $\times$ 5 + 3 $\times$ 4 = 4 $\times$ (___+ 5)

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Solution

4 $\times$ 5 + 3 $\times$ 4
= 4 $\times$ 5 + 4 $\times$ 3 (Commutative property of multiplication)
= 4 $\times$ (5 + 3)
= 4 $\times$ (3 + 5) (Commutative property of addition)

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