Question

1.39+0.27+0.6+2.28怎么简便计算？

Answer 1

1.39+0.27+0.6+2.28
=（1.39+0.6）+（0.27+2.28）
=1.99+2.55
=4.54

你好，本题已解答
如满意，请点采纳

Answer 2

1.39十0.27十0.6十2.28二1.39十0.27十0.6十（0.01十0.23十2.24）二（1.39十0.6十0.01）十（0.27十0.23〉十2.24二2十0.5十2.24二4.74

Answer 3

=1.39+（0.27+2.28+0.6）
=1.39+（2.55+0.6）
=1.39+3.15
=4.54

Answer 4

1.39+0.27+0.6+2.28
=1.39+2.28+0.27+0.6
=3.67+0.87
=4.54

Answer 5

1.39+0.27+0.6+2.28怎么简便计算？
1.39+0.27+0.6+2.28
=（1.40-0.01）+（0.30-0.03）+0.6+（2.30-0.02）
=1.4-0.01+0.3-0.03+0.6+2.3-0.02
=（1.4+0.6+0.3+2.3）-（0.01+0.03+0.02）
=4.6-0.06
=4.54