计算题
5﹣x=3
2
:5=0.75:x
614115﹣517440÷168 (3.3×6.3×0.6)÷(1.8+2.7×1.9)
18﹣2÷(3
+1
)×20
2.74﹣0.56×(2
﹣1
+2.275)
计算题
5﹣x=3
2
:5=0.75:x
614115﹣517440÷168 (3.3×6.3×0.6)÷(1.8+2.7×1.9)
18﹣2÷(3
+1
)×20
2.74﹣0.56×(2
﹣1
+2.275)