7 ×(90+19) 7 × 109 109
1) _________ _______ _______
(63+94) × 7 157 × 7 157
2) (735-622) × 31 113 × 31 113
__________ _______ _____
31× (239-112) 31 × 127 127
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7 ×(90+19) 7 × 109 109
1) _________ _______ _______
(63+94) × 7 157 × 7 157
2) (735-622) × 31 113 × 31 113
__________ _______ _____
31× (239-112) 31 × 127 127