摘要: 7-4= 10-6= 8-4= 9-6= 8-1= 7-5= 10-7= 4+4= 2+6= 3+4= 9-5= 10-8=
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| 6.8-1.36-0.64 | 21.9+(15.7+18.1) | (2.5×73)×0.4 | ★9×(7000÷63) |
| 5.6×1.25 | ★11.1÷0.25 | 457÷25÷4 | 2.6+7.7+7.4+3.3 |
| 0.2×1.8×0.5×10 | ★21÷1.25 | ★(8700+870+87)÷87 | 5.3×4.9+5×5.3. |
|
(1)7 -1=□ |
(2)5 -2=□ |
(3)2 -1=□ |
|
(4)3 +□=4 |
(5)9 +□=10 |
(6)6 +1=□ |
|
(7)3 +2=□ |
(8)2 -2=□ |
(9)3 +□=5 |
|
(10)8 +□=10 |