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Find the unknown. (i) 37 + 43 = 43 + ____ (ii) (22 + 10) + 15 = ____ + (10 + 15)

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Find the unknown.

(i) 37 + 43 = 43 + ____

(ii) (22 + 10) + 15 = ____ + (10 + 15)

(iii) If 7 × 46 = 322, then 46 × 7 = _____

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(i) 37 + 43 = 43 + 37

(ii) (22 + 10) + 15 = 22 + (10 + 15)

(iii) If 7 × 46 = 322, then 46 × 7 = 322

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