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脱式计算.(1)2.37+5.91+0.63(2)18-1.52-0.48(3)19.4-1.28-3.72(4)24.65-(4.65+3.28+2.72)
题目详情
脱式计算.
(1)2.37+5.91+0.63
(2)18-1.52-0.48
(3)19.4-1.28-3.72
(4)24.65-(4.65+3.28+2.72)
(1)2.37+5.91+0.63
(2)18-1.52-0.48
(3)19.4-1.28-3.72
(4)24.65-(4.65+3.28+2.72)
▼优质解答
答案和解析
(1)2.37+5.91+0.63
=2.37+0.63+5.91
=3+5.91
=8.91;
(2)18-1.52-0.48
=18-(1.52+0.48)
=18-2
=16;
(3)19.4-1.28-3.72
=19.4-(1.28+3.72)
=19.4-5
=14.4;
(5)24.65-(4.65+3.28+2.72)
=24.65-4.65-3.28-2.72
=20-(3.28+2.72)
=20-6
=14.
=2.37+0.63+5.91
=3+5.91
=8.91;
(2)18-1.52-0.48
=18-(1.52+0.48)
=18-2
=16;
(3)19.4-1.28-3.72
=19.4-(1.28+3.72)
=19.4-5
=14.4;
(5)24.65-(4.65+3.28+2.72)
=24.65-4.65-3.28-2.72
=20-(3.28+2.72)
=20-6
=14.
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