口算。24×=2.28-0.18=1÷0.25=3.75+=4.8÷3=-=×6.9=0.1÷0.1%×0.8=

基础巩固换一批

24× $\text{[math]}$ =	2.28-0.18=	1÷0.25=	3.75+ $\text{[math]}$ =
4.8÷3=	$\text{[math]}$ - $\text{[math]}$ =	$\text{[math]}$ ×6.9=	0.1÷0.1%×0.8=

526-198=	0.32×2.5=	$\frac{8}{9}$ n× $\frac{3}{4}$ n=	0.3²=
24× $\frac{3}{4}$ + $\frac{1}{4}$ =	2.6+1.98=	$\frac{5}{6}$ - $\frac{3}{5}$ =	1.6÷25%=

20×60%=	$1.5 \times \frac{2}{3} =$	4÷20%=	96%×100=
0.5²=	1.25×8=	3.14×5×2=	16×50%=

1. 口算。24×=2.28-0.18=1÷0.25=3.75+=4.8÷3=-=×6.9=0.1÷0.1%×0.8=