5.38-2.34-1.66=
5.38-2.34-1.66=5.38-(______+______)3.84+7.43+2.57+6.16=(______+______)+(______+______...
5.38-2.34-1.66=5.38-(______+______)
3.84+7.43+2.57+6.16=(______+______)+(______+______) 展开
3.84+7.43+2.57+6.16=(______+______)+(______+______) 展开
展开全部
5.38-2.34-1.66
=5.38-(2.34+1.66)
=5.38-4
=1.38
3.84+7.43+2.57+6.16
=(3.84+6.16)+(7.43+2.57)
=10+10
=20
故答案为:2.34,1.66;3.84,6.16,7.43,2.57.
=5.38-(2.34+1.66)
=5.38-4
=1.38
3.84+7.43+2.57+6.16
=(3.84+6.16)+(7.43+2.57)
=10+10
=20
故答案为:2.34,1.66;3.84,6.16,7.43,2.57.
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