Properties of Addition
Estimating Sums and Differences
Adding
Subtracting
Final Jeopardy
100
98 + _ = 76 + 98
What is the Commutative Property
100
$6.35 - $2.93
What is $3.00
100
778 + 397 =
What is 1,175
100
$9.05 - $2.47 =
What is $6.58
100
Solve. Tell whether it is an Exact or Estimate. Sal's Lunch cost $7.56. He pays with a twenty-dollar bill. How much change should the cashier give Sal?
What is $12.44; exact answer
200
0 + _ = 15
What is the Zero Property
200
759 + 385
What is 1,200
200
$153.98 + $72.35 =
What is $226.33
200
3,040 - 1,942 =
What is 1,098
300
50 + (25 + 38) = (50 + 25) +38
What is the Associative Property
300
55,883 - 15,751=
What is 40,000
300
25,846 + 16,985 =
What is 42,831
300
10,600 - 5,251 =
What is 5,349
400
27 + 16 = 16 + 27
What is the Commutative Property
400
88,015 - 22,673=
What is 70,000
400
62,141 + 37,436 =
What is 99,577
400
27,000 - 3,688 =
What is 23,312
500
(9 + 3) + 17 = 9 + (3 + 17)
What is the Associative Property
500
622 + 5,299=
What is 5,600
500
563,399 + 26,302
What is 589,701
500
942,385 - 461,803 =
What is 480,582
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