用递等式计算,能简算要简算。3.2x2.4+32x0.76 14.3÷1.1-1.8 0.76×9
用递等式计算,能简算要简算。3.2x2.4+32x0.7614.3÷1.1-1.80.76×9918.48÷(3.94+4.86)...
用递等式计算,能简算要简算。3.2x2.4+32x0.76
14.3÷1.1-1.8
0.76×99
18.48÷(3.94+4.86) 展开
14.3÷1.1-1.8
0.76×99
18.48÷(3.94+4.86) 展开
3个回答
展开全部
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
14.3÷1.1-1.8
=13-1.8
=11.2
0.76×99
=0.76×(100-1)
=0.76×100-0.76×1
=76-0.76
=75.24
18.48÷(3.94+4.86)
=18.48÷8.8
=2.1
=3.2×2.4+3.2×7.6
=3.2×(2.4+7.6)
=3.2×10
=32
14.3÷1.1-1.8
=13-1.8
=11.2
0.76×99
=0.76×(100-1)
=0.76×100-0.76×1
=76-0.76
=75.24
18.48÷(3.94+4.86)
=18.48÷8.8
=2.1
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2015-11-02
展开全部
=3.2×2.4+3.2×7.6
=3.2×(2.4+7.6)
=3.2×10
=32
=3.2×(2.4+7.6)
=3.2×10
=32
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追答
=13-1.8
=11.2
=0.76×100-0.76
=76-0.76
=75.24
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