①×7+
②3.5×10.1
③×6×7×
④×[5-(+)]
⑤48×(+-)
5.68﹣0.73﹣0.27
3.25×3.8+67.5×0.38
8×43×125
×7= 0×= -= ×= 2.4÷=
1﹣÷ ×2.8= 5÷= 4×÷4×= +÷+=