1.78+3.6+2.4 6.58+8.52-6.52 4.04-2.5+0.96
1.78+3.6+2.4 6.58+8.52-6.52 4.04-2.5+0.96
6.58+8.52—6.52 = = =.简便计算
用简便计算 计算:6.58+8.52-6.52= 40-3.56-6.44=
2.4/2.5+1.6*2.5
简便运算0.96×2.4+4.8×0.
在2.4,3.6,1.8,2.5,2.1这组数据中,中位数是几?平均数是几?
解方程 X-2.4+0.6=4 9.2-(3.6+X)=2.5
一组数据2.4 3.6 2.7 2.5 3.3 X的平均数是2.
1.5:2.4=X:4 X:1.2=2.5:3.6求解比例.
3.44+7.61-2.17 35.9+(4.24-1.78) 0.96-0.28+0.04 6.
( )/2.4=3.6/1.2 7.5/( )=2.5/12 2.7/( )=3/9 1.6/ ( )=0.5/3/8
69.12÷3.6+69.12÷6.4 35×0.5+65÷2 0.96×9.9+0.96×0.1