A.(63﹣27)÷9 | B.8×4﹣20 | C.62﹣(38+17) |
A.48 | B.288 | C.144 |
A.40-25×20+13 |
B.(40-25)×20+13 |
C.(40-25)×(20+13) |
A.57 | B.34 | C.54 | D.75 |
A.20 | B.15 | C.108 | D.10 |
A.4 | B.5 | C.3 | D.6 |
A.184 | B.45500 | C.70000 | D.534 |
A.5×12÷3与45-28+10 | B.15÷1×7与15-1×7 | C.81÷9×6与81+9×6 |
A.7 | B.10 | C.14 | D.6 |
A.减法→乘法→除法 | B.乘法→减法→除法 | C.减法→除法→乘法 |