Question

12.12-7.83-2.17怎么脱式计算

Answer 1

12.12-7.83-2.17怎么脱式计算

12.12-7.83-2.17怎么脱式计算
12.12-7.83-2.17
=12.12-（7.83+2.17）
=12.12-10
=2.12

21.47-2.17-7.83+8.57怎么计算

21.47-2.17-7.83+8.57
=21.47+8.57-（2.17+7.83）
=30-10
=20

18.63-2.17-7.83+2.37简便计算

18.63-2.17-7.83+2.37
=（18.63+2.37）-（2.17+7.83）
=21-10
=11

17.83－9.5－7.83－0.5脱式计算怎么写

17.83－9.5－7.83－0.5
=（17.83-7.83）-（9.5+0.5）
=10-10
=0

6.5×1.4+7.83脱式计算

=6.5(1+0.4)+7.83
=6.5+2.6+7.83
=(6+2+7)+(0.5+0.6+0.83)
=15+1.93
=16.93

18.3-9.92+2.17-3.08用脱式怎么计算

18.3-9.92+2.17-3.08
=（18.3+2.17）-（9.92+3.08）
=20.47-13
=7.47

用简便方法计算7.83—(3.76—2.17)—0.24

7.83—(3.76—2.17)—0.24
=7.83-3.76+2.17-0.24
=（7.83+2.17）-（3.76+0.24）
=10-4
=6

2.17-1.23-0.48怎样脱式计算？

2.17-1.23-0.48脱式计算
=0.94-0.48
=0.46

7.49-[o.56=2.49] 21.43-2.17-7.83=8.57 都用简便计算

7.49-(0.56+2.49)=7.49-0.56-2.49=7.49-2.49-0.56=5-0.56=4.44
21.43-2.17-7.83+8.57=21.43+8.57-2.17-7.83=(21.43+8.57)-(2.17+7.83)=30-10=20