2025年口算训练四年级数学上册北师大版双色升级版第39页答案
$22×30=$
660
$306÷3=$
102
$240÷3=$
80

$603÷9=$
67
$45÷3=$
15
$700×4=$
2800

$305÷5=$
61
$417÷3=$
139
$27×40=$
1080

$50×36=$
1800
$345÷5=$
69
$612÷9=$
68

答案

解析:
这些题目都是基础的数学运算题目,包括乘法和除法。
接下来,我们按照题目顺序,逐一进行计算。
答案:
$22 × 30 = 660$;
$306 ÷ 3 = 102$;
$240 ÷ 3 = 80$;
$603 ÷ 9 = 67$;
$45 ÷ 3 = 15$;
$700 × 4 = 2800$;
$305 ÷ 5 = 61$;
$417 ÷ 3 = 139$;
$27 × 40 = 1080$;
$50 × 36 = 1800$;
$345 ÷ 5 = 69$;
$612 ÷ 9 = 68$。
$5×4×3=$
60
$13+250÷5=$
63
$43+100÷5=$
63

$100-75÷5=$
85
$25×40+25=$
1025
$15×40÷2=$
300

$18÷2×4=$
36
$100+25-36=$
89
$560-35×0=$
560

$55+(200-36)=$
219
$10+(36+14)=$
60
$28×6÷3=$
56

$50+25×4=$
150
$139+24×50=$
1339
$35+300×6=$
1835

$800-100×3=$
500
$450÷9+60=$
110
$500÷5+43=$
143

$13+5×72=$
373
$30×(16+7)=$
690
$30×16+7=$
487

$20000÷50+4=$
404
$510÷3×10=$
1700
$510÷(3×10)=$
17

$(95-5)×(25+15)=$
3600
$19×(128-28)÷4=$
475

答案

$5×4×3=60$
$13+250÷5=63$
$43+100÷5=63$
$100-75÷5=85$
$25×40+25=1025$
$15×40÷2=300$
$18÷2×4=36$
$100+25-36=89$
$560-35×0=560$
$55+(200-36)=219$
$10+(36+14)=60$
$28×6÷3=56$
$50+25×4=150$
$139+24×50=1339$
$35+300×6=1835$
$800-100×3=500$
$450÷9+60=110$
$500÷5+43=143$
$13+5×72=373$
$30×(16+7)=690$
$30×16+7=487$
$20000÷50+4=404$
$510÷3×10=1700$
$510÷(3×10)=17$
$(95-5)×(25+15)=3600$
$19×(128-28)÷4=475$
$3\ 3\ 3\ 3\ 3= $
(3-3)×3×3×3
$0$ $3\ 3\ 3\ 3\ 3= $
(3+3+3)÷3÷3
$1$

答案

(3-3)×3×3×3=0
(3+3+3)÷3÷3=1