用简便方法计算。 +3.75+ +62.5% ×35%+ ×0.350.125×32×0.824×( + - )
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用简便方法计算。 +3.75+ +62.5% ×35%+ ×0.35 0.125×32×0.8 24×( + - ) |
(1)
+3.75+
+62.5%
=
+
+3.75+0.625
=1+3.75+0.625
=5.375,
(2)
×35%+
×0.35
=
×0.35+
×0.35
=(
+
)×0.35
=0.35;
(3)0.125×32×0.8
=0.125×0.8×32
=0.1×32
=3.2;
(4)24×(
+
-
)
=24×
+24×
-24×
=6+4-3
=7