Ms. Borek has a garden that is 11 meters long by 5 meters wide. About how many square meters of soil is needed to cover the garden?
Exact answer or estimate? Then solve!
What is estimate and 10 x 5 = 50 square meters of soil?
100
What are the factors of the number 16?
What is 1, 2, 4, 8, and 16?
200
Round these two numbers to the nearest hundred:
1, 394
912
What is 1,400 and 900?
200
List the factors for 15
What is 1, 15, 3, and 5?
200
List the first 5 multiples of 4.
What is 4, 8, 12, 16, and 20?
200
Andrew answered 1,000 to the problem 485 x 2. Did he estimate or find an exact answer?
What is estimation?
200
Use front-end estimation to solve the problem.
147 + 781 =
What is 100 + 800 = 900?
300
Use front-end estimation on the following numbers:
2, 832
764
1, 252
What is 3,000, 800, and 1,000?
300
Complete a factor tree for the number 36 and circle the prime numbers.
What is 3, 3, 2, and 2?
300
List the first 8 multiples of 9.
What is 9, 18, 27, 36, 45, 54, 63, and 72.
300
One turtle laid 457 eggs. The second turtle laid 321 eggs. About how many were laid in total?
Estimate or exact answer? Then solve!
What is estimation and 500 + 300 = 800.
300
Which 2 numbers are prime? AND, which 2 numbers are composite?
3, 9, 7, 12
What is 3 and 7 are prime, and 9 and 12 are composite?
400
Find the sum. Then use rounding to check your answers are reasonable.
468 + 729 =
What is 1,197 and 1,200?
400
What is the lowest common factor between 27 and 33?
What is 3?
400
What is the lowest common multiple between 3 and 5?
What is 15?
400
Stella needs 415 yellow beads and 730 green beads for one necklace. She has 1,500 beads total. Does she have enough total beads for the necklace?
Will you estimate or find an exact answer? Then solve!
What is an exact answer and YES she has enough for one necklace. 1 necklace needs 415 + 730 = 1,145. 1, 145 is less than 1,500.
400
3 is a ______ of 33 and 33 is a _________ of 3.
What is factor and multiple?
500
Find the product. Then estimate to check that your answer is reasonable.
52 x 3 =
What is 156 and 150?
500
What is the greatest common factor between 49 and 42?
What is 7?
500
What is the lowest common multiple between 2, 4, and 5?
What is 20?
500
Michelle bought 15 pizzas. Each pizza cost 6 dollars. What is the total amount Michelle spent on pizzas?
Exact amount or estimate? Then solve!