《2025年云南省标准教辅同步指导训练与检测配套测试卷三年级数学上册人教版》

1. 直接写出得数。(12分)
$\frac{2}{7} + \frac{4}{7} = $$\frac{6}{7}$
$1 - \frac{3}{11} - \frac{2}{11} = $$\frac{6}{11}$
$\frac{4}{17} + \frac{5}{17} - \frac{2}{17} = $$\frac{7}{17}$
$\frac{5}{8} - \frac{3}{8} = $$\frac{1}{4}$
$51 × 4 = $204
$2300 × 3 = $6900
$199 × 8 = $1592
$90 × 0 = $0
$603 × 7 = $4221
$42 × 3 = $126
$81 × 8 = $648
$408 × 4 = $1632

答案： 1. $\frac{2}{7} + \frac{4}{7} = \frac{6}{7}$
2. $1 - \frac{3}{11} - \frac{2}{11} = \frac{6}{11}$
3. $\frac{4}{17} + \frac{5}{17} - \frac{2}{17} = \frac{7}{17}$
4. $\frac{5}{8} - \frac{3}{8} = \frac{2}{8} = \frac{1}{4}$
5. $51 × 4 = 204$
6. $2300 × 3 = 6900$
7. $199 × 8 = 1592$
8. $90 × 0 = 0$
9. $603 × 7 = 4221$
10. $42 × 3 = 126$
11. $81 × 8 = 648$
12. $408 × 4 = 1632$

2. 列竖式计算。(12分)
$97 × 5 = $$\begin{array}{r r}&97 \\ ×& \,\, 5 \\ \hline &485 \end{array}$
$283 × 6 = $$\begin{array}{r r}&283 \\ × &\,\,6 \\ \hline &1698 \end{array}$
$135 × 8 = $$\begin{array}{r r}&135 \\ × &\,\, 8 \\ \hline &1080 \end{array}$
$361 × 8 = $$\begin{array}{r r}&361 \\ ×&\,\, 8 \\ \hline &2888 \end{array}$
$509 × 7 = $$\begin{array}{r r}&509 \\ ×&\,\, 7 \\ \hline &3563 \end{array}$
$870 × 6 = $$\begin{array}{r r}&870 \\ × &\,\,6 \\ \hline &5220 \end{array}$

答案： 1. $97 × 5 = 485$
$\begin{array}{r r}&97 \\ ×& \,\, 5 \\ \hline &485 \end{array}$
2. $283× 6 = 1698$
$\begin{array}{r r}&283 \\ × &\,\,6 \\ \hline &1698 \end{array}$
3. $135× 8 = 1080$
$\begin{array}{r r}&135 \\ × &\,\, 8 \\ \hline &1080 \end{array}$
4. $361× 8 = 2888$
$\begin{array}{r r}&361 \\ ×&\,\, 8 \\ \hline &2888 \end{array}$
5. $509× 7 = 3563$
$\begin{array}{r r}&509 \\ ×&\,\, 7 \\ \hline &3563 \end{array}$
6. $870× 6 = 5220$
$\begin{array}{r r}&870 \\ × &\,\,6 \\ \hline &5220 \end{array}$

1. 教师节期间,三(1)班有$\frac{5}{7}$的学生给老师送了自制卡片,有$\frac{2}{7}$的学生给老师送了手工百合花。送自制卡片的学生比送手工百合花的学生多几分之几？教师节期间三(1)班学生都给老师送礼物了吗？(每名学生只送一种礼物。)(6分)

答案： $\frac{5}{7}-\frac{2}{7}=\frac{3}{7}$
$\frac{5}{7}+\frac{2}{7}=1$
答：送自制卡片的学生比送手工百合花的学生多$\frac{3}{7}$，教师节期间三
(1)班学生都给老师送礼物了。