| 37-21= | 850÷100= |  = |  = |
 = |  = | 12×5= | 4.4×1.1= |
 = |  = | 36÷3= | 3-2.55= |
 = |  = | 210×10= |  = |
 = | 0.95=________% | 9.5-8.7= |  = |
0÷ = | 1.12=________% | 0.6+0.13= |  = |
2× = |  =________% | 0.4×0.9= |  = |
 = |  =________% | 2.4÷0.3= |  = |
 ×24= | 75%= | 1.2-1.16= |  = |
| 9÷8= | 15%=． |
分析：根据整数、分数、小数和百分数加减乘除的计算方法进行计算．
解答：
| 37-21=16， | 850÷100=8.5， | = ， | = ， |
= ， | = ， | 12×5=60， | 4.4×1.1=4.84， |
= ， | = ， | 36÷3=12， | 3-2.55=0.45， |
= ， | =6， | 210×10=2100， | =1， |
= ， | 0.95=95%， | 9.5-8.7=0.8， | = ， |
| 0÷=0， | 1.12=112%， | 0.6+0.13=0.73， | = ， |
2×= ， | =40%， | 0.4×0.9=0.36， | =， |
= ， | =22%， | 2.4÷0.3=8， | = ， |
| ×24=17， | 75%= ， | 1.2-1.16=0.04， | = ， |
| 9÷8=， | 15%= ． |
点评：口算时，注意运算符号和数据，然后再进一步计算．