We need to solve the following math problems: 10. $879 \times 3 = $ 11. $71 \times 8 = $ 12. $50 \times 70 = $ 13. $100 \times 412 = $ 14. $3.005 + 6.12 = $ 15. $486 \div 3 = $

1. Problem Description

We need to solve the following math problems:

1

0. $879 \times 3 = $

1

1. $71 \times 8 = $

1

2. $50 \times 70 = $

1

3. $100 \times 412 = $

1

4. $3.005 + 6.12 = $

1

5. $486 \div 3 = $

2. Solution Steps

1

0. $879 \times 3$

$879 \times 3 = (800 \times 3) + (70 \times 3) + (9 \times 3) = 2400 + 210 + 27 = 2637$

1

1. $71 \times 8$

$71 \times 8 = (70 \times 8) + (1 \times 8) = 560 + 8 = 568$

1

2. $50 \times 70$

$50 \times 70 = 5 \times 10 \times 7 \times 10 = 5 \times 7 \times 10 \times 10 = 35 \times 100 = 3500$

1

3. $100 \times 412$

$100 \times 412 = 41200$

1

4. $3.005 + 6.12$

$3.005 + 6.12 = 3.005 + 6.120 = 9.125$

1

5. $486 \div 3$

$486 \div 3 = (300 \div 3) + (180 \div 3) + (6 \div 3) = 100 + 60 + 2 = 162$

Alternatively, perform long division.

3. Final Answer

1

0. 2637

1

1. 568

1

2. 3500

1

3. 41200

1

4. 9.125

1

5. 162