32a + 6a =
8y - 3y =
3y × 6x =
b × a =
2 × 9y =
a × b × 5 =
9y - 4y =
2a + 6a =
2.8a + 7.5a =
0.8m × 3m =
2.1 × 3b =
0.6y + y =
9.2y + 3.6y =
5.6x - 3x =
5a × 0.8 =
3a - 0.5a =
6 × 3b =
42a - 6a =
25 × 4 × y =
6.7x + 5x =
8y - 3y =
3y × 6x =
b × a =
2 × 9y =
a × b × 5 =
9y - 4y =
2a + 6a =
2.8a + 7.5a =
0.8m × 3m =
2.1 × 3b =
0.6y + y =
9.2y + 3.6y =
5.6x - 3x =
5a × 0.8 =
3a - 0.5a =
6 × 3b =
42a - 6a =
25 × 4 × y =
6.7x + 5x =
答案
1. 38a
2. 5y
3. 18xy
4. ab
5. 18y
6. 5ab
7. 5y
8. 8a
9. 10.3a
10. 2.4 m²
11. 6.3b
12. 1.6y
13. 12.8y
14. 2.6x
15. 4a
16. 2.5a
17. 18b
18. 36a
19. 100y
20. 11.7x
2. 5y
3. 18xy
4. ab
5. 18y
6. 5ab
7. 5y
8. 8a
9. 10.3a
10. 2.4 m²
11. 6.3b
12. 1.6y
13. 12.8y
14. 2.6x
15. 4a
16. 2.5a
17. 18b
18. 36a
19. 100y
20. 11.7x
2 竖式计算(带☆的要验算)
建议用时6分钟 评价:☆☆☆
0.75×24=
12.35÷19=
☆9.26×27=
45.5÷13=
12.5×53=
☆52÷8=
10.5×46=
0.525÷15=
7.05÷47=
建议用时6分钟 评价:☆☆☆
0.75×24=
12.35÷19=
☆9.26×27=
45.5÷13=
12.5×53=
☆52÷8=
10.5×46=
0.525÷15=
7.05÷47=
答案
1. 18
2. 0.65
3. 250.02
4. 3.5
5. 662.5
6. 6.5
7. 483
8. 0.035
9. 0.15
(竖式及验算略)
2. 0.65
3. 250.02
4. 3.5
5. 662.5
6. 6.5
7. 483
8. 0.035
9. 0.15
(竖式及验算略)
如图,从一个大正方形中剪下一个小正方形,则剩余图形的周长是(
4a
)cm,剩余图形的面积是(a²−b²
)cm²。(单位:cm)答案
1. 4a
2. a²−b²
2. a²−b²
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