.
2.35+1.713+0.287+7.65 0.134+2.66+0.866 3.07-0.38-1.62 (2.5-0.25)×0.4 63.4÷2.5÷0.4 .
1.57+0.245+7.43 1.27+3.9+0.73+16.1 1.29+3.7+2.71+6.3 9.16×1.5-0.5×9.16 4.9÷1.4 6.02+3.6+1.98
7.5+4.9-6.5
8-2.45-1.55
3.6-3.6×0.5
3.9÷(1.3×5)
.
(7.7+1.54)÷0.7 0.35×1.25×2×0.8 4.5÷1.8 3.65×10.1 30.8÷[14-(9.85+1.07)] .
2.5×2.4 32.4×0.9+0.1×32.4 4.2÷3.5 15÷(0.15×0.4) [60-(9.5+28.9)]÷0.18 2.7÷45
15÷0.25
930÷0.6÷5
3.2×0.25×12.5
2.881÷0.43-0.24×3.5
.
20×[(2.44-1.8)÷0.4] 777×9+1111×3 31.5×4÷(6+3) 194-64.8÷1.8×0.9 24÷2.4-2.5×0.8 .
28-(3.4+1.25×2.4) 0.8×〔15.5-(3.21+5.79)〕 0.64×25×7.8+2.2 36.72÷4.25×9.9 (4121+2389)÷7 2.55×7.1+2.45×7.1
(31.8+3.2×4)÷5
2÷2.5+2.5÷2
5180-705×6
671×15-974
.
469×12+1492 0.8×[(10-6.76)÷1.2]
0.6÷(0.2+0.3) 4.7
7.3×99 (1.25+2.5) 0.9
(8.4+0.28) ÷7 7.8
.
405×(3213-3189) 19.4×6.1×2.3 —(2.6—1.7) 4.3×8 9.42×99+3.9×2 7.43.416÷(0.016×35)
5.67×0.2-0.62
×(1.5+0.4×3) ×10—94.2×÷(3.7×4)