问题
解答题
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答案
(1)12.5×3.5×0.8
=12.5×0.8×3.5
=10×3.5
=35;
(2)3.6÷1.2÷3
=3.6÷(1.2×3)
=3.6÷3.6
=1;
(3)7.2×7.2+3.8×7.2-7.2
=7.2×(7.2+3.8-1)
=7.2×10
=72.
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(1)12.5×3.5×0.8
=12.5×0.8×3.5
=10×3.5
=35;
(2)3.6÷1.2÷3
=3.6÷(1.2×3)
=3.6÷3.6
=1;
(3)7.2×7.2+3.8×7.2-7.2
=7.2×(7.2+3.8-1)
=7.2×10
=72.