1.2×0.3= ﹣= 32÷53×0=
0.25÷= 1﹣0.09= +20%=
75×12﹣848÷4 [-(-)]÷ 9.24÷[1.5×(0.9﹣0.7)]
1.25×8=
数量关系式:
67+28= 960﹣540= 1.6×5= 7.5+2.7=
= = 53÷100= =
261﹣99= 17÷34= 2.1+0.79= 80×125%=
÷36= 38.38÷38= +×0= ×3÷×3=