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递等式计算76ⅹ61+39X76怎么做?
3个回答
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解:76ⅹ61+39X76等于( 7600 )
∵已知需求出76ⅹ61+39X76等于多少
A × B + A × C = A × (B + C)
∴76 ⅹ 61 + 39 X 76
= 76 × (61 + 39)
= 76 × 100
= 7600
答:76ⅹ61+39X76等于7600
∵已知需求出76ⅹ61+39X76等于多少
A × B + A × C = A × (B + C)
∴76 ⅹ 61 + 39 X 76
= 76 × (61 + 39)
= 76 × 100
= 7600
答:76ⅹ61+39X76等于7600
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