Tracy ordered 325 pet toys and 165 bags of dog food for her new pet store. What is the best estimate of the total number of items Tracy ordered?
500
100
On Monday, 46 boys and 38 girls bought lunch at school. How many students bought lunch?
84 students
100
At summer camp there are 52 boys, 47 girls, and 18 adults. How many people are at summer camp?
117 people
200
What is 667 rounded to the nearest hundred?
700
200
Odd + even = ?
Odd
200
Greg counted 83 cars and 38 trucks in the mall parking lot. What is the best estimate of the total number of cars and trucks Greg counted?
120
200
The Colorado River is 119 miles longer than the Kansas River. The Kansas River is 743 miles long. How long is the Colorado River?
862 miles
200
Mr. Miller drove 568 miles last week. He drove 308 miles this week. What was the number of miles he drove in these two weeks?
876 miles
300
What is 809 rounded to the nearest hundred?
800
300
Which property states that you can add two or more numbers in any order and get the same sum?
3 + 4 = 4 + 3
Commutative Property of Addition
300
Ms. Kirk drove 164 miles in the morning and 219 miles in the afternoon. What is the best estimate of the total number of miles she drove that day?
400 miles
300
There were 87 sunflowers at the flower shop in the morning. There were 56 sunflowers left at the end of the day. How many sunflowers were sold?
31 sunflowers
300
There are 842 seats in the school auditorium. 138 seats need repairs. How many seats do not need repairs?
704 seats
400
What is 106 rounded to the nearest ten?
110
400
Which property states that the sum of any number and zero is that number?
7 + 0 = 7
Identity Property of Addition
400
A total of 926 people went to a fishing tournament. Of these people, 607 arrived before noon. What is the best estimate of the number of people who arrived in the afternoon?
300
400
The Goliath roller coaster is 235 feet tall. The Steel Dragon roller coaster is 318 feet tall. How many feet taller is Steel Dragon than Goliath?
83 feet
400
The number of laptop computers sold in one day was 42. That is 18 fewer than the number of desktop computers sold. How many desktop computers were sold?
60
500
What is 596 rounded to the nearest ten?
600
500
Which property states that you can group addends in different ways and still get the same sum?
(16 + 7) + 23 = 16 + (7 + 23)
Associative Property of Addition
500
The flower shop had 568 flowers on Monday. By Tuesday, the shop had 159 flowers left. About how many flowers had been sold?
400
500
In one week, 103 students were absent. The next week, 17 fewer students were absent than the week before. How many students were absent in those two weeks?
189 students
500
In July, 112 campers attended summer camp. In August, 11 fewer campers attended than in July. How many campers attended summer camp in July and August altogether?