计算下面各题,能简算的要简算.9.5×1.06-2.52÷2.43.4×0.26+0.74×3.4 1.25×32×0.87.09×99+7.0968.
计算下面各题,能简算的要简算.9.5×1.06-2.52÷2.43.4×0.26+0.74×3.41.25×32×0.87.09×99+7.0968.5+31.5÷(0....
计算下面各题,能简算的要简算.9.5×1.06-2.52÷2.43.4×0.26+0.74×3.4 1.25×32×0.87.09×99+7.0968.5+31.5÷(0.29+0.41)0.4×5÷0.4×5.
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(1)9.5×1.06-2.52÷2.4
=10.07-1.05
=9.02;
(2)3.4×0.26+0.74×3.4
=3.4×(0.26+0.74)
=3.4×1
=3.4;
(3)1.25×32×0.8
=(1.25×0.8)×32
=1×32
=32;
(4)7.09×99+7.09
=7.09×(99+1)
=7.09×100
=709;
(5)68.5+31.5÷(0.29+0.41)
=68.5+31.5÷0.7
=68.5+45
=113.5;
(6)0.4×5÷0.4×5
=2÷0.4×5
=5×5
=25.
=10.07-1.05
=9.02;
(2)3.4×0.26+0.74×3.4
=3.4×(0.26+0.74)
=3.4×1
=3.4;
(3)1.25×32×0.8
=(1.25×0.8)×32
=1×32
=32;
(4)7.09×99+7.09
=7.09×(99+1)
=7.09×100
=709;
(5)68.5+31.5÷(0.29+0.41)
=68.5+31.5÷0.7
=68.5+45
=113.5;
(6)0.4×5÷0.4×5
=2÷0.4×5
=5×5
=25.
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