脱式计算9.8÷2.5÷0.4 0.8×(0.175×1.25) 16.8÷1.25÷0.8 (34.28+45.43)÷0.5&n...
脱式计算9.8÷2.5÷0.40.8×(0.175×1.25)16.8÷1.25÷0.8(34.28+45.43)÷0.528.8×(4.8÷1.2)116.9÷0.7-...
脱式计算9.8÷2.5÷0.4 0.8×(0.175×1.25) 16.8÷1.25÷0.8 (34.28+45.43)÷0.5 28.8×(4.8÷1.2) 116.9÷0.7-85.67.
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①9.8÷2.5÷0.4
=9.8÷(2.5×0.4)
=9.8÷1
=9.8;
②0.8×(0.175×1.25)
=(0.8×1.25)×0.175
=1×0.175
=0.175;
③16.8÷1.25÷0.8
=16.8÷(1.25×0.8)
=16.8÷1
=16.8;
④(34.28+45.43)÷0.5
=79.71÷0.5
=159.42;
⑤28.8×(4.8÷1.2)
=28.8×4
=115.2;
⑥116.9÷0.7-85.67
=167-85.67
=81.33.
=9.8÷(2.5×0.4)
=9.8÷1
=9.8;
②0.8×(0.175×1.25)
=(0.8×1.25)×0.175
=1×0.175
=0.175;
③16.8÷1.25÷0.8
=16.8÷(1.25×0.8)
=16.8÷1
=16.8;
④(34.28+45.43)÷0.5
=79.71÷0.5
=159.42;
⑤28.8×(4.8÷1.2)
=28.8×4
=115.2;
⑥116.9÷0.7-85.67
=167-85.67
=81.33.
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