问题 解答题
脱式计算,能简算的要简算.
2.6×(3.5+2.8)
8.84÷1.7-0.52
1.58×99+1.58    2×4.67×0.5.
答案

(1)2.6×(3.5+2.8),

=2.6×6.3,

=16.38;

(2)8.84÷1.7-0.52,

=5.2-0.52,

=4.68;

(3)1.58×99+1.58,

=1.58×(99+1),

=1.58×100,

=158;

(4)2×4.67×0.5,

=(2×0.5)×4.67,

=1×4.67,

=4.67.

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