《2025年口算训练三年级数学上册人教版双色升级版》

903 × 5 = 503 × 9 = 105 × 2 = 507 × 5 = 904 × 6 = 906 × 6 = 503 × 7 = 903 × 9 = 904 × 7 = 507 × 9 = 804 × 4 = 208 × 3 = 403 × 9 = 801 × 9 = 402 × 7 = 207 × 2 = 709 × 2 = 506 × 3 = 607 × 3 = 406 × 8 =

答案： 解析：这些题目都是基础的乘法口算题，需要直接计算出各个乘法表达式的结果。
答案：
$903 × 5 = 4515$
$503 × 9 = 4527$
$105 × 2 = 210$
$507 × 5 = 2535$
$904 × 6 = 5424$
$906 × 6 = 5436$
$503 × 7 = 3521$
$903 × 9 = 8127$
$904 × 7 = 6328$
$507 × 9 = 4563$
$804 × 4 = 3216$
$208 × 3 = 624$
$403 × 9 = 3627$
$801 × 9 = 7209$
$402 × 7 = 2814$
$207 × 2 = 414$
$709 × 2 = 1418$
$506 × 3 = 1518$
$607 × 3 = 1821$
$406 × 8 = 3248$

103 × 5 = 101 × 7 = 303 × 5 = 202 × 7 = 407 × 6 = 801 × 3 = 506 × 5 = 409 × 7 = 509 × 7 = 102 × 7 = 802 × 5 = 409 × 2 = 906 × 2 = 102 × 9 = 504 × 7 = 903 × 6 = 506 × 9 = 702 × 6 = 907 × 4 = 308 × 6 =

答案： 解析：这些题目都是基础的乘法口算题，需要直接算出每个乘法表达式的得数。
答案：
$103 × 5 = 515$
$101 × 7 = 707$
$303 × 5 = 1515$
$202 × 7 = 1414$
$407 × 6 = 2442$
$801 × 3 = 2403$
$506 × 5 = 2530$
$409 × 7 = 2863$
$509 × 7 = 3563$
$102 × 7 = 714$
$802 × 5 = 4010$
$409 × 2 = 818$
$906 × 2 = 1812$
$102 × 9 = 918$
$504 × 7 = 3528$
$903 × 6 = 5418$
$506 × 9 = 4554$
$702 × 6 = 4212$
$907 × 4 = 3628$
$308 × 6 = 1848$

810 × 8 = 6480 640 × 3 = 1920 590 × 4 = 2360 340 × 3 = 1020 330 × 5 = 1650 910 × 4 = 3640 630 × 3 = 1890 380 × 8 = 3040 620 × 2 = 1240 260 × 9 = 2340 950 × 5 = 4750 550 × 8 = 4400 240 × 8 = 1920 380 × 4 = 1520 130 × 4 = 520 450 × 5 = 2250 180 × 3 = 540 790 × 5 = 3950 360 × 8 = 2880 610 × 8 = 4880

答案： 解析：这些题目都是基础的乘法口算题，考查的是学生对乘法运算的掌握程度。
答案：
$810 × 8 = 6480$
$640 × 3 = 1920$
$590 × 4 = 2360$
$340 × 3 = 1020$
$330 × 5 = 1650$
$910 × 4 = 3640$
$630 × 3 = 1890$
$380 × 8 = 3040$
$620 × 2 = 1240$
$260 × 9 = 2340$
$950 × 5 = 4750$
$550 × 8 = 4400$
$240 × 8 = 1920$
$380 × 4 = 1520$
$130 × 4 = 520$
$450 × 5 = 2250$
$180 × 3 = 540$
$790 × 5 = 3950$
$360 × 8 = 2880$
$610 × 8 = 4880$