7. Match the following:
(i) 425 × 136 = 425 × (6 + 30 +100)          (a) Commutativity under multiplication.
(ii) 2 × 49 × 50 = 2 × 50 × 49                     (b) Commutativity under addition.
(iii) 80 + 2005 + 20 = 80 + 20 + 2005        (c) Distributivity of multiplication over addition.

Answers (1)

(i) 425 \times 136 = 425 \times (6 + 30 +100)

(c) Distributivity of multiplication over addition.

(ii) 2 \times 49 \times 50 = 2 \times 50 \times 49

(a) Commutativity under multiplication.

(iii) 80 + 2005 + 20 = 80 + 20 + 2005 

(b) Commutativity under addition.

 

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