![](https://rs.olm.vn/images/avt/0.png?1311)
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
Complete 10 Times Table.
1 10 is 10 5 10 is 50 9 10 is 90
2 10 is 20 6 10 is 60 10 10 is 100
3 10 is 30 7 10 is 70 11 10 is 110
4 10 is 40. 8 10 is 80 12 10 is 120
![](https://rs.olm.vn/images/avt/0.png?1311)
9 x 2 = 18
9 x 5 = 45
9 x 8 = 72
9 x 10 = 90
2 x 9 = 18
5 x 9 = 45
8 x 9 = 72
10 x 9 = 90
![](https://rs.olm.vn/images/avt/0.png?1311)
1 + 1 + 2 + 2 + 3 + 3 + 4 + 4 + 5 + 5 + 6 + 6 + 7 + 7 + 8 + 8 + 9 + 9 +10 +10
= (1+9) + (1+9) + (2+8) + (2+8) + (3+7) + (3+7) + (4+6) + (4+6) + (5+5) + 10+10
= 10 + 10 +10 + 10 +10 +10 +10 +10 + 10 + 10 +10
= 10 x 11
= 110
![](https://rs.olm.vn/images/avt/0.png?1311)
6000 + 10 + 2 = 6012
5000 + 9 = 5009
4000 + 400 + 4 = 4404
2000 + 20 = 2020
![](https://rs.olm.vn/images/avt/0.png?1311)
9 *9 +1
= 18 + 1
= 19
10 *10 *10
= 100 x10
= 1000
2 *5 +5
= 10 + 5
= 15
9 x 9 + 1
= 81 + 1
= 82
10 x 10 x 10
= 100 x 10
= 1000
= 2 x 5 + 5
= 10 + 5
= 15
![](https://rs.olm.vn/images/avt/0.png?1311)
=10x(9+2-1)
=10x10
=100
học tốt nhé
9.10+2.10-10
= 90+20-10
= 110-10
= 100.