280＋840÷24×5 84.7×7－54.7×7 28-(3.4+1.25×2.4) 36.72÷4.25×9.9 3.26×0.52+3.26×0.48+7.05 2.55×7.1+2.45×7.1 5180－705×6 87.4×27.6+73.4×87.4－87.4 777×9+1111×3 24÷2.4－2.5×0.8 0.8×〔15.5-(3.21+5.79)〕
(4121+23)÷7
5.7×101
4.2×（12.5－7.5÷0.75
30.8÷[14－(9.85＋1.07)]
671×15-974 31.5×4÷(6+3) 405×(3213-31) 2.881÷0.43－0.24×3.5 2÷2.5+2.5÷2 3.416÷（0.016×35 (6.8-6.8×0.55)÷8.5] 194－.8÷1.8×0.9 0.8×[(10－6.76)÷1.2] 19.4×6.1×2.3 5.67×0.2-0.62
18.1×0.92+3.93
0.0430.24+0.875
0.4×0.7×0.25
0.75×102
100-56.23 0.78+5.436+1 469×12+1492 [60－(9.5＋28.9)]÷0.18 0.×25×7.8+2.2 85×(95－1440÷24) 125×(33－1) 37.4－(8.6＋7.24－6.6) 37.85-（7.85+6.4 (93＋25×21)×9 384÷12＋23×371
(39－21)×(396÷6)
156×[(17.7-7.2)÷3]
28×(5+969.9÷318)
57×12－560÷35
848－0÷16×12 2800÷ 100＋7 960÷（1500－32×45 138×25×4 (12+24+80)×50 704×25 25×32×125 32×(25+125) 178×101－178 84×36+×84 75×99+2×75
83×102－83×2
98×199
25×（24+16
123×18－123×3+85×123
