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6.3 42的简便计算

6.3/42=3/20两边同时除以2.1

63/42=(63÷7)/(42÷7)=9/6=(9÷3)/(6÷3)=3/2朋友,请及时采纳正确答案,下次还可能帮到您哦,您采纳正确答案,您也可以得到财富值,谢谢.

你好!6:3÷4:2='2:1X3÷(2:1x2)=3/2 仅代表个人观点,不喜勿喷,谢谢.

6.3÷0.3÷0.7÷2=21÷0.7÷2=30÷2=15 不懂可追问,有帮助请采纳,谢谢!

你好!=63÷42=63÷21÷2=3÷2=1.5如有疑问,请追问.

6.3*5.8 +4.2=6.3*5.8 +10-5.8=5.8(6.3-1)+10=5.8*5.3+10=(6-0.2)*5.3+10=(6*5.3-0.2*5.3)+10=(31.8-1.06)+10=30.74+10=40.74

6.3÷42 =6.3/7/6=0.9/6=0.15 7.4*5.6+0.74=0.74*56+0.74*1=0.74*(56+1)=0.74*57=42.18 2.22*17+3.33*4+6.66*9 =1.11*(2*17)+1.11*(3 *4)+1.11*(6*9)=1.11*(34+12+54)=1.11*100=111

简便计算6.3-1.64-3.36=6.3-(1.64+3.36)=6.3-5=1.3

6.3+8.8x4.7=6.3+8.8x(5-0.3)=6.3+44-2.64=47.66

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