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①15.74-4.3-5.7+4.26
②7.6×4.3+0.43×23+0.43
③8.88×1250
④40.9÷0.25
⑤0.25×(4-0.8)×1.25
⑥3.72-0.72×[0.1÷(15.9-15.85)]
①7.4﹣6.62+20.6﹣13.38
②×+×
③(-+)÷
④2×0.8×12.5×50%
⑤÷(÷+)
⑥×[1÷(+)]
①4.7-1.66-2.34
②4.8+7.44+2.56+5.2
③43000÷125÷8
④36×54+36+45×36
⑤(124-76)×23÷24
⑥270×[128÷(88-24)]
(36.8+2.5)+7.5=36.8+(+)
(a+b)×=a×12+×12
①46.69-8.19-1.81
②99×78
③8.24-(2.24+1.9)
④365×99+365
⑤32×25×125
⑥4.38+2.75+5.62+6.25
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