Let's go through the questions one by one from the image.

Section A: Multiplication

1. Find the product of: a) $2 \times 30 = 60$ b) $4 \times 200 = 800$

Section B: Estimation 2. Estimate the product of $2 \times 224$ by rounding:

• Round 224 to the nearest hundred, which is 200.
• Estimate $2 \times 200 = 400$. So, the closest estimate is a) 400.

Section C: Ranges for Estimates 3. Find TWO estimates that the product of $2 \times 960$ is between:

• Rounding 960 to the nearest hundred gives 1,000.
• $2 \times 1,000 = 2,000$.
• Now, rounding 960 to the nearest thousand is still 1,000, so the range could be slightly below or above 2,000, such as 1,800 to 2,100.

Possible estimates could be 1,800 and 2,100.

Section D: Comparison 4. Compare the following using $>$, $<$, or $=$: a) $50 \times 20 = 1,000$, so $1,000 = 1,000$. b) $7 \times 20 = 140$, and 140 is less than 1,400, so $140 < 1,400$.

Would you like further details or explanations on any of these problems?

Here are 5 related questions:

1. What is the product of $3 \times 50$?
2. Can you estimate $3 \times 512$ by rounding?
3. What are two estimates for the product of $4 \times 875$?
4. Compare $60 \times 15$ and 900 using $>$, $<$, or $=$.
5. Estimate $6 \times 198$ by rounding the numbers.

Tip: When rounding numbers for estimation, always focus on making the calculation simpler by rounding to the nearest ten, hundred, or thousand.