1 直接写出得数。(每题1分,共20分)
$94 - 53 = $ $789 + 345 = $ $821 - 56 = $ $567×7 = $
$956×50 = $ $690÷5 = $ $57 + 43 = $ $765 - 234 = $
$572 + 17 = $ $789×8 = $ $147×60 = $ $864÷6 = $
$86 - 28 = $ $654 + 123 = $ $480÷60 = $ $250×2 = $
$0.03×10 = $ $0.62×100 = $ $0.29÷10 = $ $6.45÷100 = $

41 1134 765 3969
47800 138 100 531
589 6312 8820 144
58 777 8 500
0.3 62 0.029 0.0645

2 列竖式计算。(每题3分,共12分)
$612÷18 = $ $405×37 = $ $580×12 = $ $675÷28 = $

竖式略
34 14985 6960 24……3

3 计算下面各题,能简算的要简算。(每题3分,共18分)
$102×35$ $95×17 + 17×3 + 102×17$ $79×101 - 79$
$125×17×8$ $212×4 + 188×4$ $1800÷[(15 + 10)×3]$

3570 3400 7900
17000 1600 24