一、直接写出得数。(每题 1 分,共 32 分)
$170 - 90 =$ $430 - 90 =$ $23×3 =$ $60 + 60 - 50 =$
$100 - 52 =$ $350 + 40 =$ $8300 - 8000 =$ $74 - 46 - 24 =$
$110 - 70 =$ $430 + 460 =$ $44÷4 =$ $35 + 27 + 31 =$
$80÷8 =$ $930 - 220 =$ $83 - 38 =$ $120 - 40 - 40 =$
$18 + 28 =$ $150 + 60 =$ $900 + 500 =$ $47 + 47 - 53 =$
$91 - 38 =$ $480 + 200 =$ $1400 - 800 =$ $50 - 38 + 73 =$
$27 + 65 =$ $830 - 300 =$ $6000 - 4000 =$ $54 + 28 - 20 =$
$30×3 =$ $50 + 860 =$ $1300 - 700 =$ $14×2 + 72 =$

一 80 340 69 70 48 390 300 4 40 890 11 93 10 710 45 40 46 210 1400 41 53 680 600 85 92 530 2000 62 90 910 600 100

二、用竖式计算,带 * 的要验算。(每题 3 分,验算 1 分,共 28 分)
$678 + 232 =$ $195 + 866 =$ $900 - 287 + 294 =$
$804 - 305 =$ $*848 - 265 =$ $82 + 296 + 307 =$
$700 - 329 =$ $462 + 98 =$ $805 - 396 - 88 =$

二 910 1061 907 499 583 685 371 560 321 竖式及验算略