Multiplying With Zeros

In an auditorium, there are 104 rows with 24 seats in each row. How many seats are available?

• 2,496

• 2,400

• 2,504

• 2,600

Why is it important to “estimate to check for reasonableness”?

• To ensure calculations are accurate

• To save time during problem-solving

• To verify the plausibility of results

• To avoid using calculators

Multiply to find the product. Estimate to check for reasonableness: 205 x 23

• 4715

• 4600

• 4800

• 4500

Multiply to find the product. Estimate to check for reasonableness: 108 x 34

• 3,672

• 3,500

• 3,600

• 3,700

Multiply to find the product. Estimate to check for reasonableness: 410 x 44

• 18,040

• 16,400

• 20,000

• 19,500

Multiply to find the product. Estimate to check for reasonableness: 302 x 30

• 9,060

• 9,000

• 10,000

• 8,000

Find each product. Estimate to check for reasonableness: 302 x 17

• 5000

• 5100

• 5200

• 5300

Find each product. Estimate to check for reasonableness: 608 x 23

• 13,984

• 14,000

• 15,000

• 16,000

Find each product. Estimate to check for reasonableness: 109 x 47

• 4,923

• 5,123

• 5,123

• 5,123

Find each product. Estimate to check for reasonableness: 510 x 72

• 36,720

• 35,000

• 37,000

• 36,000