计算。5-3= 4-2= 3-2= 2-0= 3-2=3-2= 5-3= 2-2= 1-0= 4-1=5-3= 3-2= 4-1= 1-0= 3-2=0-0= 4-2= 5-1= 3-2= 5-5=
2.5×4.4 25×1.25×32
3.35×6.4×2+6.7×3.6 18.7-3.375-6.625
125×(8+0.8+0.08) 45÷〔78-(25+38)
1.3-3.79+9.7-6.21 8×0.4×12.5×2.5
19175÷59+678 36.5×1.4-8.51