一、直接写出得数。（每题1分，共32分）
$45 - 36 =$ $2100 - 800 =$ $650 - 430 =$ $48 + 45 - 33 =$
$52 + 18 =$ $19 + 66 =$ $40 + 270 =$ $42 - 40 + 90 =$
$55 ÷ 5 =$ $82 - 54 =$ $7000 - 3000 =$ $71 - 27 + 34 =$
$55 - 15 =$ $12 + 46 =$ $680 - 320 =$ $33 + 19 - 21 =$
$11 × 6 =$ $3200 - 300 =$ $5000 + 2700 =$ $54 ÷ 6 × 4 =$
$71 - 38 =$ $70 + 4000 =$ $3000 - 600 =$ $72 - 20 + 31 =$
$135 - 70 =$ $80 ÷ 4 =$ $2000 + 800 =$ $60 + 70 - 40 =$
$83 - 27 =$ $55 - 47 =$ $66 ÷ 3 =$ $96 - 31 - 45 =$

一 9 1300 220 60
70 85 310 92
11 28 4000 78
40 58 360 31
66 2900 7700 36
33 4070 2400 83
65 20 2800 90
56 8 22 20

二、用竖式计算，带*的要验算。（每题3分，验算各1分，共29分）
$560 + 279 =$ $* 668 + 242 =$ $800 - 473 =$
$620 - 265 =$ $* 648 - 296 =$ $196 + 487 =$
$126 + 359 - 198 =$ $178 + 197 + 236 =$ $706 - 357 + 406 =$

二 839 910 327
355 352 683
287 611 755
竖式及验算略