1楼:洪祎枋
(1)4.2×5.5×1.2
=23.1×1.2
=27.72
(2)4.6×1.45-1.08
=6.67-1.08
=5.59
(3)183×0.4÷24+1.65
=73.2÷24+1.65
=3.05+1.65
=4.7
(4)4.87×2.34+4.87×7.66=4.87×(2.34+7.66)
=4.87×10
=48.7
(5)19.625-(4.716+9.625)=19.625-4.716-9.625
=(19.625-9.625)-4.716=10-4.716
=5.284
(6)6.4×9+6.4
=6.4×(9+1)
=6.4×10=64
脱式计算(能简算要简算)?
2楼:妙酒
3.76+4.25+5.75 +12-
3.27-0.73+ 60.
49-36+5.51,‘=(4.25+5.
75)+12-(3.27+0.73)-36+(60.
49+5.51)+3.76
=10+12-4-36+66+3.76
=51.76
3楼:老任
解:1 . 3.76+4.25+5.75
=3.76+(4.25+5.75)
=3.76+10
=13.76
2. 12-3.27-0.73
=12-(3.27+0.73)
=12-4
=83. 60.49-36+5.51
=(60.49+5.51)-36
=66-36=30
4楼:原宇卫香旋
(54+9/13)÷9
36÷【
(5/6-1/3)×3】
5/7+8/7÷2
2-6/13÷9/2-2/3
=(54+9/13)×1/9
=36÷2/3
=5/7+4/7
=2-4/39-2/3
=54×1/9+9/13×1/9
=54=9/7
=2-(4/39+2/3)
=6+1/13
=48/39=16/13
=79/13或6
1/13
【3/5-(2/4-2/5)】÷4
=【3/5-1/10】÷4
=1/2÷4
=1/8
希望我答
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脱式计算:能简算的要简算。,脱式计算:一、能简算的要简算。③4/7×5/9+3/7×5/9 = = = =
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