
脱式计算,能简算的要简算. 2.65×1.7+1.35×1.7 23.4÷7.
脱式计算,能简算的要简算.2.65×1.7+1.35×1.723.4÷7.8-2.10.25×0.8×4×0.125....
脱式计算,能简算的要简算. 2.65×1.7+1.35×1.7 23.4÷7.8-2.1 0.25×0.8×4×0.125.
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根据题意可得:
(1)2.65×1.7+1.35×1.7,
=(2.65+1.35)×1.7,
=4×1.7,
=6.8;
(2)23.4÷7.8-2.1,
=3-2.1,
=0.9;
(3)0.25×0.8×4×0.125,
=(0.25×4)×(0.8×0.125),
=1×0.1,
=0.1.
(1)2.65×1.7+1.35×1.7,
=(2.65+1.35)×1.7,
=4×1.7,
=6.8;
(2)23.4÷7.8-2.1,
=3-2.1,
=0.9;
(3)0.25×0.8×4×0.125,
=(0.25×4)×(0.8×0.125),
=1×0.1,
=0.1.
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