《2025年口算大通关六年级数学下册苏教版》

求比值
$3:2=$ $3:1.5=$ $7:5=$ $5:9=$
$5:6=$ $9:10=$ $6:4=$ $5:3=$
$10:2=$ $0.3:0.9=$ $4.2:7=$ $0.7:\frac{7}{5}=$
$1.4:0.2=$ $16:32=$ $0.4:0.8=$ $15:9=$
$0.25:\frac{1}{4}=$ $\frac{1}{6}:\frac{1}{9}=$ $1:0.3=$ $3.2:4=$
$\frac{1}{2}:\frac{1}{4}=$ $0.25:\frac{1}{7}=$ $0.4:1=$ $0.3:\frac{12}{5}=$

答案： $\frac{3}{2}$ 2 $\frac{7}{5}$ $\frac{5}{9}$
$\frac{5}{6}$ $\frac{9}{10}$ $\frac{3}{2}$ $\frac{5}{3}$
5 $\frac{1}{3}$ 0.6 $\frac{1}{2}$
7 $\frac{1}{2}$ $\frac{1}{2}$ $\frac{5}{3}$
1 $\frac{3}{2}$ $\frac{10}{3}$ 0.8
2 $\frac{7}{4}$ 0.4 $\frac{1}{8}$

笔算
$4x + 20 = 60$ $x - 30\%x = 21$ $24x = 48$
$4x - 150\%x = 0.75$ $0.75x - 2 = 1.24$ $1.4x + 2.2x = 36$

答案： $x = 10$ $x = 30$ $x = 2$
$x = 0.3$ $x = 4.32$ $x = 10$