题目内容
【题目】用简便方法计算,不简便不得分.
(1)7.325﹣(5.325+1.7)
(2)7÷0.25÷4
(3)0.92×1.41+0.92×8.59
(4)3.5×99+3.5
【答案】(1)0.3
(2)7
(3)9.2
(4)350
【解析】
(1)7.325﹣(5.325+1.7)
=7.325﹣5.325﹣1.7
=2﹣1.7
=0.3
(2)7÷0.25÷4
=7÷(0.25×4)
=7÷1
=7
(3)0.92×1.41+0.92×8.59
=0.92×(1.41+8.59)
=0.92×10
=9.2
(4)3.5×99+3.5
=3.5×(99+1)
=3.5×100
=350
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