8× <74 320÷ <81 6× <31 9× <65 57> ×7 35>8× 29>7× 426>5× .
÷24== : = %= (填小数)
÷ === (填小数)
:8=0.375== %=18÷ .
=0.25=9: = %= 成.
:5=0.6== ÷60= %