3.5×4+12.5×0.6脱式计算
脱式计算,能简算的要简算.3.5×4.5×4;12.6-1.9+1.9-3.39;1÷[0.1÷(1.43-0.93)];4.4×4.6+5.4×4.4....
脱式计算,能简算的要简算. 3.5×4.5×4; 12.6-1.9+1.9-3.39; 1÷[0.1÷(1.43-0.93)]; 4.4×4.6+5.4×4.4.
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(1)3.5×4.5×4
=3.5×(4.5×4)
=3.5×18
=63;
(2)12.6-1.9+1.9-3.39
=12.6-3.39+(1.9-1.9)
=9.21+0
=9.21;
(3)1÷[0.1÷(1.43-0.93)]
=1÷(0.1÷0.5)
=1÷0.2
=5;
(4)4.4×4.6+5.4×4.4
=(4.6+5.4)×4.4
=10×4.4
=44.
=3.5×(4.5×4)
=3.5×18
=63;
(2)12.6-1.9+1.9-3.39
=12.6-3.39+(1.9-1.9)
=9.21+0
=9.21;
(3)1÷[0.1÷(1.43-0.93)]
=1÷(0.1÷0.5)
=1÷0.2
=5;
(4)4.4×4.6+5.4×4.4
=(4.6+5.4)×4.4
=10×4.4
=44.
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