问题
解答题
脱式计算.
9.6÷2.5÷0.4
2.25÷1.25÷0.8
12.1÷2÷0.55.
答案
(1)9.6÷2.5÷0.4
=9.6÷(2.5×0.4),
=9.6÷1,
=9.6;
(2)2.25÷1.25÷0.8
=2.25÷(1.25×0.8),
=2.25÷1,
=2.25;
(3)12.1÷2÷0.55
=12.1÷(2×0.55),
=12.2÷1.1,
=11.
脱式计算.
9.6÷2.5÷0.4
2.25÷1.25÷0.8
12.1÷2÷0.55.
(1)9.6÷2.5÷0.4
=9.6÷(2.5×0.4),
=9.6÷1,
=9.6;
(2)2.25÷1.25÷0.8
=2.25÷(1.25×0.8),
=2.25÷1,
=2.25;
(3)12.1÷2÷0.55
=12.1÷(2×0.55),
=12.2÷1.1,
=11.