递等式计算,能简算的要简算,并写出主要计算过程.6.8×0.56+0.44×6.8 9.6×10.1 11.25÷...
递等式计算,能简算的要简算,并写出主要计算过程.6.8×0.56+0.44×6.89.6×10.111.25÷0.9-0.37.2÷0.25÷0.4(16+1.48÷3....
递等式计算,能简算的要简算,并写出主要计算过程.6.8×0.56+0.44×6.8 9.6×10.1 11.25÷0.9-0.3 7.2÷0.25÷0.4 (16+1.48÷3.7)÷0.82 4.8×99+4.8.
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①6.8×0.56+0.44×6.8
=6.8×(0.56+0.44)
=6.8×1
=6.8;
②9.6×10.1
=9.6×(10+0.1)
=96+0.96
=96.96;
③11.25÷0.9-0.3
=12.5-0.3
=12.2;
④7.2÷0.25÷0.4
=7.2÷(0.25×0.4)
=7.2÷0.1
=72;
⑤(16+1.48÷3.7)÷0.82
=16.4÷0.82
=20;
⑥4.8×99+4.8
=4.8×(99+1)
=480;
=6.8×(0.56+0.44)
=6.8×1
=6.8;
②9.6×10.1
=9.6×(10+0.1)
=96+0.96
=96.96;
③11.25÷0.9-0.3
=12.5-0.3
=12.2;
④7.2÷0.25÷0.4
=7.2÷(0.25×0.4)
=7.2÷0.1
=72;
⑤(16+1.48÷3.7)÷0.82
=16.4÷0.82
=20;
⑥4.8×99+4.8
=4.8×(99+1)
=480;
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