
计算下列各题,能简算的要简算.(1)19.2÷2.4×3.2(2)9.6×10.1(3)14.3÷1.1-
计算下列各题,能简算的要简算.(1)19.2÷2.4×3.2(2)9.6×10.1(3)14.3÷1.1-0.8(4)3.2×2.4+32×0.76....
计算下列各题,能简算的要简算.(1)19.2÷2.4×3.2(2)9.6×10.1(3)14.3÷1.1-0.8(4)3.2×2.4+32×0.76.
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(1)19.2÷2.4×3.2
=8×3.2
=25.6;
(2)9.6×10.1
=9.6×10+9.6×0.1
=96+0.96
=96.96;
(3)14.3÷1.1-0.8
=13-0.8
=12.2;
(4)3.2×2.4+32×0.76
=3.2×2.4+3.2×7.6
=3.2×(2.4+7.6)
=3.2×10
=32.
=8×3.2
=25.6;
(2)9.6×10.1
=9.6×10+9.6×0.1
=96+0.96
=96.96;
(3)14.3÷1.1-0.8
=13-0.8
=12.2;
(4)3.2×2.4+32×0.76
=3.2×2.4+3.2×7.6
=3.2×(2.4+7.6)
=3.2×10
=32.
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