6.6×6.7=44.22
66.6×66.7=4442.22
666.6×666.7=444422.22
66.666×66.667=
666.666×666.667=
6.666666×6666.667=
1.47+53= | = | = | = |
= | = | = |
2.52= | 2.5÷40%= | |
1.25×32= | ||
45:25 ★30千克:0.9吨
5.1 :1.7 37.5%:0.8
①x:15=4:5 ② ③ ④
①3x-3.7=21.2 ② ③30%x+40×0.12=6
化简比0.15:3.5
x÷4=2.8 | 5x+6×0.4=12.4 | 9x+6x=480 |