╭(╯^╰)╮六年级数学题咯.
问题描述:
╭(╯^╰)╮六年级数学题咯.
计算
1.229+378÷18+75
0.4+2.6÷(4.7-3.4)
(40-35×7分之2)×10分之9
345-2442÷37+34
答
1.229+378÷18+75
=1.229+21+75
=1.229+(21+75)
=1.229+96
=97.229
0.4+2.6÷(4.7-3.4)
=0.4+2.6÷1.3
=0.4+2
=2.4
(40-35×7分之2)×10分之9
=(40-10)×9/10
=30×9/10
=27
345-2442÷37+34
=345-66+34
=345+34-66
=379-66
=313