登录
一、口算。
$24 + 40 = $
$909 ÷ 9 = $
$148 × 2 + 30 = $
$480 ÷ 60 = $
$102 × 5 = $
$18 - 480 ÷ 60 = $
$50 × 60 = $
$85 × 40 = $
$(136 - 32) ÷ 8 = $
$82 ÷ 41 = $
$65 - 16 = $
$60 × 6 ÷ 15 = $
$96 ÷ 24 = $
$215 ÷ 5 = $
$(62 + 38) ÷ 50 = $
$312 ÷ 6 = $
$149 + 51 = $
$480 ÷ 24 ÷ 10 = $
$33 + 77 = $
$104 ÷ 8 = $
$(82 - 41) × 20 = $
$35 × 6 = $
$15 × 50 = $
$640 ÷ 80 × 20 = $
$24 + 40 = $
64
$909 ÷ 9 = $
101
$148 × 2 + 30 = $
326
$480 ÷ 60 = $
8
$102 × 5 = $
510
$18 - 480 ÷ 60 = $
10
$50 × 60 = $
3000
$85 × 40 = $
3400
$(136 - 32) ÷ 8 = $
13
$82 ÷ 41 = $
2
$65 - 16 = $
49
$60 × 6 ÷ 15 = $
24
$96 ÷ 24 = $
4
$215 ÷ 5 = $
43
$(62 + 38) ÷ 50 = $
2
$312 ÷ 6 = $
52
$149 + 51 = $
200
$480 ÷ 24 ÷ 10 = $
2
$33 + 77 = $
110
$104 ÷ 8 = $
13
$(82 - 41) × 20 = $
820
$35 × 6 = $
210
$15 × 50 = $
750
$640 ÷ 80 × 20 = $
160
答案
一、64 101 326 8 510 10 3000 3400 13 2 49 24 4 43 2 52 200 2 110 13 820 210 750 160
二、计算下面各题。
$(440 - 432 ÷ 16) × 6$
$256 ÷ 16 × 47 - 198$
$936 ÷ [12 × (60 - 54)]$
$405 ÷ 15 + 27 × 99$
$852 - 456 ÷ 38 × 47$
$960 ÷ [(16 + 32) × 2]$
$(440 - 432 ÷ 16) × 6$
$256 ÷ 16 × 47 - 198$
$936 ÷ [12 × (60 - 54)]$
$405 ÷ 15 + 27 × 99$
$852 - 456 ÷ 38 × 47$
$960 ÷ [(16 + 32) × 2]$
答案
二、2478 554 13 2700 288 10
解析
$(440 - 432 ÷ 16) × 6$
$=(440 - 27)×6$
$=413×6$
$=2478$
$256 ÷ 16 × 47 - 198$
$=16×47 - 198$
$=752 - 198$
$=554$
$936 ÷ [12 × (60 - 54)]$
$=936÷[12×6]$
$=936÷72$
$=13$
$405 ÷ 15 + 27 × 99$
$=27 + 27×99$
$=27×(1 + 99)$
$=27×100$
$=2700$
$852 - 456 ÷ 38 × 47$
$=852 - 12×47$
$=852 - 564$
$=288$
$960 ÷ [(16 + 32) × 2]$
$=960÷[48×2]$
$=960÷96$
$=10$
$=(440 - 27)×6$
$=413×6$
$=2478$
$256 ÷ 16 × 47 - 198$
$=16×47 - 198$
$=752 - 198$
$=554$
$936 ÷ [12 × (60 - 54)]$
$=936÷[12×6]$
$=936÷72$
$=13$
$405 ÷ 15 + 27 × 99$
$=27 + 27×99$
$=27×(1 + 99)$
$=27×100$
$=2700$
$852 - 456 ÷ 38 × 47$
$=852 - 12×47$
$=852 - 564$
$=288$
$960 ÷ [(16 + 32) × 2]$
$=960÷[48×2]$
$=960÷96$
$=10$
