Question

I dont understand this at all so here is 100 points

Answer 1

Step-by-step explanation: First row, first column 500 * 7 = 3500

1st row , second column 7 * 60 = 420

1st row, third column 7 * 3 = 21

Do similary for the others

2nd row, 40,000 4800 240

3rd row , 100000 12000 6000

Answer 2

`\large\text{ \quad \quad \quad \quad 500 \quad \quad\;\;\;60 \quad \quad \;3}\\\\\large\begin{array}c\cline{2-4} \phantom{\frac12}7 & \boxed{3500} &\boxed{420} & \boxed{21}\\\cline{2-4} \phantom{\frac12}80 & \boxed{40000} & \boxed{4800} & \boxed{240}\\\cline{2-4} \phantom{\frac12}200 & \boxed{100000} & \boxed{12000} & \boxed{600}\\\cline{2-4} \end{array}`

Explanation:

For each box, multiply the number of the row by the number of the column:

`\large\text{ \quad \quad \quad \quad \quad 500 \quad \quad \quad\;\;60 \quad \quad \quad \;\;\;3}\\\\\large\begin{array}c\cline{2-4} \phantom{\frac12}7 & \boxed{7 * 500} &\boxed{7 * 60} & \boxed{ 7 * 3}\\\cline{2-4} \phantom{\frac12}80 & \boxed{80 * 500} & \boxed{80 * 60} & \boxed{80 * 3}\\\cline{2-4} \phantom{\frac12}200 & \boxed{200 * 500} & \boxed{200 * 60} & \boxed{200 * 3}\\\cline{2-4} \end{array}`

When multiplying numbers ending in zeros (multiples of 10, 100, etc.), first multiply the numbers as if they didn't have zeros, then add all the zeros to the final answer.

For example:

200 × 500 has a total of 4 zeros.

Multiply 2 × 5 = 10

Then add 4 zeros: 10 0000

Therefore, 200 × 500 = 100000

Final Solution

`\large\text{ \quad \quad \quad \quad 500 \quad \quad\;\;\;60 \quad \quad \;3}\\\\\large\begin{array}c\cline{2-4} \phantom{\frac12}7 & \boxed{3500} &\boxed{420} & \boxed{21}\\\cline{2-4} \phantom{\frac12}80 & \boxed{40000} & \boxed{4800} & \boxed{240}\\\cline{2-4} \phantom{\frac12}200 & \boxed{100000} & \boxed{12000} & \boxed{600}\\\cline{2-4} \end{array}`