计算①920÷[12×(25+45)]②(0.4+23)÷(56-0.75)×0.5③1.25+114×7.4+125%÷58④393939×899899377377×939393⑤6.6-135÷(0.375×45+18×0.8)⑥514-2.125+(4.75-338)⑦1124+[(1.5-数学
=1
1 |
24 |
25 |
6 |
2 |
3 |
8 |
9 |
=1
1 |
24 |
10 |
9 |
2 |
3 |
8 |
9 |
=1
1 |
24 |
2 |
3 |
8 |
9 |
=1
1 |
24 |
3 |
4 |
=1
19 |
24 |
⑧
1 |
1×4 |
1 |
4×7 |
1 |
7×10 |
1 |
97×100 |
=
1 |
3 |
1 |
4 |
1 |
4 |
1 |
7 |
1 |
7 |
1 |
10 |
1 |
97 |
1 |
100 |
=
1 |
3 |
1 |
100 |
=
1 |
3 |
99 |
100 |
=