Multiplying Multiples of 10
Solve 30 x 9.
270
Estimate the product by rounding to the nearest ten: 53 x 32.
1,500
Use any strategy to solve the following: 84 x 37
3,108
One school has 60 buses. Each school bus carries 34 students. If all of the school buses are full, how many students are on the school buses?
2,040 students
Solve 80 x 50.
4,000
Estimate the product by rounding to the nearest 10: 27 x 21.
600
Use any strategy to find the following product: 56 x 17
952
There are 27 students in Ms. Langley's class. Each student is assigned 23 different math problems. How many math problems are assigned to the whole class?
621 math problems
Solve 70 x 80.
5,600
Estimate the product by rounding to the nearest 10: 88 x 42.
3,600
Solve: 72 x 64
4,608
Barb exercises for 22 hours each week. How many hours does she exercise in 14 weeks?
308 hours
DOUBLE JEOPARDY
The product of two factors is 1,ooo. One of the factors is 20. What is the other factor?
50
A tub can hold 57 gallons of water. About how many gallons of water are used to refill the bathtub every day for 41 days?
2,400 gallons
What are the partial products for the following equation: 26 x 28?
400, 160, 120, 48
Mary walked 13 miles 14 times last month. She walked 12 miles 13 times this month. How many miles did Mary walk in all?
338 miles
The product of two factors is 7,200. If one of the factors is 90, what is the other factor?
80
Bags of potatoes weigh 35 pounds each. Cases of onions weigh 19 pounds each. Estimate which weighs more: 23 bags of potatoes or 32 cases of onions.
23 bags of potatoes
What is 70 x 35?
245
Mary has 12 shelves that hold 19 books on each shelf. Suppose she adds 2 more shelves. How many books would all the shelves hold?
266 books