A.12÷6+24 | B.12+24÷6 | C.(12+24)÷6 |
A.36-15÷7 | B.(36-15)÷3 | C.36-21÷7 | D.(36-15)÷7 |
A.4 | B.5 | C.9 |
A.40×(2×3) | B.(45+6)÷3 | C.78-(28+12) |
A.2 | B.3 | C.4 |
A.结果相同 | B.运算顺序一样 | C.计算结果和运算顺序都不一样 |
A. | B. | C. |
A.11 |
B.198 |
C.860 |
D.21 |
A.45÷3 | B.3+2 | C.45÷5 |
A.246-57+13 | B.126+(56-13) | C.110-(7+13) |