Multiplying by Tens at the Stadium
0 / 14Multiplying by Tens at the Stadium
Multiply one-digit numbers by multiples of 10.
Think in tens
Use tens to help you multiply.
To find 4 × 30, think of 30 as 3 tens.
4 × 3 tens = 12 tens, and 12 tens = 120. So 4 × 30 = 120.
4 × 3 tens = 12 tens, and 12 tens = 120. So 4 × 30 = 120.
1.
5 × 40 = 5 × tens = tens =
2.
7 × 60 = 7 × 6 tens = tens =
3.
3 × 90 = 3 × tens = tens =
4.
Which shows a correct way to find 8 × 50?
Facts with tens
Find each product or missing number. Each missing number is a one-digit number or a multiple of 10.
5.
Match each fact to its product.
6.
6 × = 240
7.
× 90 = 450
8.
8 × = 480
9.
Circle each fact that has a product of 360.
Stadium stories
Read each story. Write the answer.
10.
The stadium has 7 rows of seats near the field. Each row has 40 seats. How many seats are in the 7 rows?
7 × 40 = seats
11.
Coach Diaz buys 6 cases of water bottles for the team. Each case holds 30 bottles. How many bottles does she buy?
bottles
12.
Priya runs 5 laps around the track. Each lap is 90 yards. Which equation shows how far she runs?
13.
Jordan sets up 280 chairs on the field for a concert. He puts them in 4 rows with the same number of chairs in each row. How many chairs are in each row?
4 × = 280
14.
Sam says 3 × 50 = 15 because 3 × 5 = 15. What mistake did Sam make? What is the correct product?