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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