摘要:13.8.0.20.19 < < < < <
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按规律填空
(1)0.12,0.23,0.34,0.45,
(2)19.2,9.6,4.8,2.4,
(3)1÷37=0.
2
2÷37=0.
5
3÷37=0.
8
4÷37=0.
0
5÷37=
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(1)0.12,0.23,0.34,0.45,
0.56
0.56
,0.67
0.67
(2)19.2,9.6,4.8,2.4,
1.2
1.2
,0.6
0.6
(3)1÷37=0.
| ? |
| 0 |
| ? |
| 7 |
| ? |
| 0 |
| ? |
| 4 |
| ? |
| 0 |
| ? |
| 1 |
| ? |
| 1 |
| ? |
| 8 |
0.
3
| ? |
| 1 |
| ? |
| 5 |
0.
3
6÷37=| ? |
| 1 |
| ? |
| 5 |
0.
6
| ? |
| 1 |
| ? |
| 2 |
0.
6
.| ? |
| 1 |
| ? |
| 2 |
心算
| 60÷3=________ | 1.4-0.8=________ | 300÷6=________ | 140÷2=________ |
| 46+38=________ | 240÷6=________ | 1800÷9=________ | 4200÷7=________ |
| 46÷2=________ | 330-70=________ | 125×8=________ | 72÷9=________ |
| 606÷3=________ | 150÷5=________ | 630÷9=________ | 300-300÷6=________ |
| 16×20=________ | 4.1+0.8=________ | 50×16=________ | 13×3=________ |
| 14×20=________ | 0÷11=________ | 20×60=________ | 19×20=________ |
| 86-68=________ | 30×12=________ | 20×40=________ | 330-70=________ |
| 80×9=________ | 11×60=________ | 12×20=________ | 18×40=________ |
| 33×30=________ | 9-4.8=________ | 3.6-1.8=________ | 6.7+2.5=________ |
| 24÷4=________ | 80-6=________ | 60÷4=________ | 4+28=________ |
| 25+75=________ | 0.6+1.5=________ | 15×50=________ | 141÷3=________ |
| 91÷7=________ | 3×4×5=________ | 137-67=________ | 380×10=________ |
| 50×50=________ | 26÷2=________ | 6.2+3.9=________ | 783÷6=________ |
| 804÷2=________ | 7×0=________ | 780-70=________ | 2407+3=________ |
| 707÷7=________ | 760-250=________ | 8.4-7.5=________ | 147÷7=________. |