①13.4-7.9-2.1
②32×0.125×0.25
③
④
25%×99+25%
19.3-(9.3+4.55)
51× 36×72+2.8×360
①10÷8-×3
②26.2-2.2-7.8
③+3.62++19.38
④9.7×3.75+2.3×
①12.7×99+12.7
②
①
②4.2×99+4.2
①25×32×1.25
②(+0.375)÷(×)
③×+÷7
④6﹣(+)
①856+97
②8.32×101-8.32
③7.5÷ -
④56×( + - )
⑤ ÷[ ×( + )]
⑥22.4-2.3-5.7
①12÷[(10.75-9.5)×0.4]
②16-16×
③8.36-3.65+1.64-2.35
④14÷ +2×
⑤( + )×8+
⑥12.7×7.5-26× -75%