Estimate the difference of 38,762-22,752 (ten thousand).
100
Identity Property.
What property is 126+0=126?
100
550 tickets
The class printed 3,000 tickets for a play. They sold 2,450 tickets. How many tickets are left?
200
2,212
What is 4,978-2,766?
200
100,000.
Estimate the sum of 67,972+30,981.
200
Commutative Property of Addition
What property is 21+34=34+21?
200
1,720 copies
A band made 8,000 copies of an album. They sold 6,280 copies. How many copies are left?
300
479,321
What is 735,184-255,863?
300
500,000.
Estimate the difference of 764,217-276,412.
300
Associative Property of Addition.
What property is (1+3)+7=1+(3+7)?
300
95,578 people
On Saturday, 143,355 people went to a festival. On Sunday only 47,777 people went to the festival. How many more people went on Saturday than on Sunday?
400
16,716
What is 40,700-23,984?
400
600,000.
Estimate the difference of 821,487-189,261.
400
Answers will vary.
Write an example showing the Commutative Property of Addition.
400
15,142 cans
In May 8,723 cans were recycled. In June, 6,419 cans were recycled. What is the total number of cans recycled?
500
44,772
What is 70,000-25,228?
500
600,000.
Estimate the difference of 999,000-376,165.
500
Answers will vary.
Write an equation showing the Associative Property of Addition.
500
13,193 pizzas
In August, Jo's Pizza Shop sold 7,236 pizzas. In September, 5,957 pizzas were sold. What is the total number of pizzas sold?