72×0.03+0.3×2.8 ÷+× 4.5÷÷
×48 -(4.375-) ÷(-0.375-)
+ =
90﹣40=
1.25×4=
100÷25=
9+2﹣5=
÷ ×7=
①÷×
②×3.2+6.8÷
③105×(+)
④﹣+﹣
⑤6.4÷[(3﹣1.4)×]
①36÷[24-(60-39)]
②3.6÷18+21
③ ÷ ×
④3.78-0.83-0.17
⑤5× + ×5
⑥36×( + )
①2.8× ÷
②( + )×30
③7.42-5.87+2.58-4.13
④0.25×4.4
⑤25×32×125
⑥ ×[ -( -0.125)]