得数保留一位
小数
0.8×0.7≈
1.2×0.7≈
0.56÷7≈
0.66×2≈
0.86×4≈
0.15÷3≈
3.2×0.3≈
0.98÷2≈
0.91×9≈
0.7×0.12≈
0.34×0.3≈
0.45×5≈
计算
2.65×10=
5÷100=
0.5×100=
2.5×0.4=
0.8×0.4=
4÷0.2=
4.2÷0.01=
0.72÷8=
0.7×0.2=
0.12÷0.4=
25×0.04=
10÷0.1=
0×3.5=
6.4÷8×5=
72÷1.2÷5=
2.17+4.5+0.83=
10.24-7.2-2.8=
5-0.3-0.2=
0.63+1.8+0.37=
13-6.2-3.8=
1.47×0.3=
3.4×99+3.4=
5.12-4.9+0.93=
6.3÷0.9×10=
4.6×5-3=
24÷12×0.5=

得数保留一位小数
$0.8×0.7≈0.6$
$1.2×0.7≈0.8$
$0.56÷7≈0.1$
$0.66×2≈1.3$
$0.86×4≈3.4$
$0.15÷3≈0.1$
$3.2×0.3≈1.0$
$0.98÷2≈0.5$
$0.91×9≈8.2$
$0.7×0.12≈0.1$
$0.34×0.3≈0.1$
$0.45×5≈2.3$
计算
$2.65×10=26.5$
$5÷100=0.05$
$0.5×100=50$
$2.5×0.4=1$
$0.8×0.4=0.32$
$4÷0.2=20$
$4.2÷0.01=420$
$0.72÷8=0.09$
$0.7×0.2=0.14$
$0.12÷0.4=0.3$
$25×0.04=1$
$10÷0.1=100$
$0×3.5=0$
$6.4÷8×5=4$
$72÷1.2÷5=12$
$2.17+4.5+0.83=7.5$
$10.24-7.2-2.8=0.24$
$5-0.3-0.2=4.5$
$0.63+1.8+0.37=2.8$
$13-6.2-3.8=3$
$1.47×0.3=0.441$
$3.4×99+3.4=340$
$5.12-4.9+0.93=1.15$
$6.3÷0.9×10=70$
$4.6×5-3=20$
$24÷12×0.5=1$

圈出得数等于2的算式

0.8+1.3=2.1
4.8÷2.4=2
18.76-16=2.76
2×0.9+0.2=2
84÷4.2=20
8.4÷4.2=2
4.8-2.8=2
0.25×8=2
0.8-0.6=0.2
0.2÷0.5=2
答：圈出得数等于2的算式：4.8÷2.4、2×0.9+0.2、8.4÷4.2、4.8-2.8、0.25×8、0.2÷0.5。