A.6+32=38 | B.3+6 |
C.3+3.5=75 | D.4-6>5 |
A.26.8+4=30.8 | B.2a+3a=9 | C.2x-8<42 |
A.10-x | B.( )×0.8>1.6 | C.6.3-2b=0.3 |
A. | B. | C. |
A.a÷0.3<2.8 | B.n+7 | C.8x+12=112 | D.91.2÷0.57=160 |
A.等式的基本性质 | B.加法结合律 | C.乘法分配律 | D.乘法交换律 |
A.10-2x=1 | B.2x-10=1 |
C.2x-1=10 | D.10-x=1 |
A.2y+8 | B.2x﹣15>7 | C.2y﹣5=18 |
A.6+3=9 | B.7-3b=12 | C.8<6n |
A.4+x-9.8=2 | B.4x-9.8=2 | C.4x+9.8=2 | D.9.8=4x+2 |