列竖式计算。(带*的要验算)
$166×7= $ $224÷32= $ $*4.2×5.26= $
$3.08×6.8≈$ $50.4÷0.28= $ $3.69÷5.6≈$
(得数保留两位小数) (得数保留两位小数)
$47×98= $ $205×24= $ $702÷52= $
$25×25= $ $483÷21= $ $*585÷18= $
$2.66÷3.5= $ $10.4×0.76≈$ $*34.5÷1.5= $
(得数保留一位小数)

1162 7 22.092 20.94 180 0.66
4606 4920 13.5 625 23 32.5 0.76
7.9 23