A.5a+1.3 | B.5a﹣1.3 | C.5+1.3 | D.5(a+1.3) |
A.a+2b | B.2(a+b) | C.2a+b | D.2a+2b |
A.4 | B.5 | C.6 |
A.24x×2=48 | B.24x=48 | C.24x÷2=48 | D.24x=48÷2 |
A.10695 | B.10790 | C.10795 | D.10595 |
A.a-b=b-a | B.a÷b=b÷a | C.ab+ac=a(b+c) |
A.60﹣x=8 | B.x﹣60=8 | C.x+8=60 | D.x+8=60﹣8 |
A.2x-8=55 | B.2x+8=55 | C.2x=55-8 |
A.800×= | B.=800 | C.800= |