2025年口算训练四年级数学上册人教版双色升级版第45页答案
$32×500=$
16000

$63×30=$
1890

$18×500=$
9000

$89×70=$
6230

$46×30=$
1380

$27×400=$
10800

$25×400=$
10000

$125×80=$
10000

$85×500=$
42500

$30×300=$
9000

$0×125=$
0

$3×205=$
615

$17×30=$
510

$65×20=$
1300

$45×300=$
13500

$56×30=$
1680

$78×200=$
15600

$64×80=$
5120

$72×300=$
21600

$56×400=$
22400

$320×30=$
9600

第43片

答案

解析:这些题目都是基础的乘法口算题,涉及到两位数乘以整百或整十的数。解题的关键是掌握乘法的运算规则,并确保计算结果的准确性。
答案:
$32 × 500 = 16000$
$63 × 30 = 1890$
$18 × 500 = 9000$
$89 × 70 = 6230$
$46 × 30 = 1380$
$27 × 400 = 10800$
$25 × 400 = 10000$
$125 × 80 = 10000$
$85 × 500 = 42500$
$30 × 300 = 9000$
$0 × 125 = 0$
$3 × 205 = 615$
$17 × 30 = 510$
$65 × 20 = 1300$
$45 × 300 = 13500$
$56 × 30 = 1680$
$78 × 200 = 15600$
$64 × 80 = 5120$
$72 × 300 = 21600$
$56 × 400 = 22400$
$320 × 30 = 9600$
$102×60=$
6120

$351×50=$
17550

$150×20=$
3000

$150×40=$
6000

$150×60=$
9000

$150×80=$
12000

$150×200=$
30000

$150×100=$
15000

$150×300=$
45000

$360×20=$
7200

$360×40=$
14400

$360×60=$
21600

$360×80=$
28800

$360×100=$
36000

$360×200=$
72000

$450×20=$
9000

$450×40=$
18000

$450×60=$
27000

$450×30=$
13500

$450×50=$
22500

$450×70=$
31500

答案

解析:这些题目都是基础的乘法口算题,需要直接计算出结果。
答案:
$102×60= 6120$;
$351×50= 17550$;
$150×20= 3000$;
$150×40= 6000$;
$150×60= 9000$;
$150×80= 12000$;
$150×200= 30000$;
$150×100= 15000$;
$150×300= 45000$;
$360×20= 7200$;
$360×40= 14400$;
$360×60= 21600$;
$360×80= 28800$;
$360×100= 36000$;
$360×200= 72000$;
$450×20= 9000$;
$450×40= 18000$;
$450×60= 27000$;
$450×30= 13500$;
$450×50= 22500$;
$450×70= 31500$。
$450×80=$
36000

$450×100=$
45000

$450×200=$
90000

$450×300=$
135000

$701×6=$
4206

$722×9=$
6498

$700×51=$
35700

$814×9=$
7326

$385×8=$
3080

$970 - 8=$
962

$500×71=$
35500

$888×2=$
1776

$8880 + 2=$
8882

$164×80=$
13120

$420×80=$
33600

$402×80=$
32160

$1600×40=$
64000

$252×20=$
5040

$480×2=$
960

$480×20=$
9600

$48×200=$
9600

答案

解析:
这些题目都是基础的数学运算题目,包括乘法、减法和加法等,主要考察学生的计算能力。
答案:
$450×80= 36000$;
$450×100= 45000$;
$450×200= 90000$;
$450×300= 135000$;
$701×6= 4206$;
$722×9= 6498$;
$700×51= 35700$;
$814×9= 7326$;
$385×8= 3080$;
$970 - 8= 962$;
$500×71= 35500$;
$888×2= 1776$;
$8880 + 2= 8882$;
$164×80= 13120$;
$420×80= 33600$;
$402×80= 32160$;
$1600×40= 64000$;
$252×20= 5040$;
$480×2= 960$;
$480×20= 9600$;
$48×200= 9600$。