Show:
Properties
Estimating
Addition
Subtraction
Mixed Problems
100
Complete each number sentence. Tell which property you used. 98 + ______ = 75 + 98
75; commutative property
100
Round to the nearest ten and estimate. 563 + 749 =
560 + 750 = 1,310
100
Add. 778 + 397 =
1,175
100
Subtract. $73.14 - $9.08 =
$64.06
100
Round to the greatest place and estimate. 883 - 316 =
900 - 300 = 600
200
Complete the number sentence. Tell which property you used. _____ + 0 = 15
15; zero property of addition
200
Round to the nearest hundred and estimate. 759 + 385 =
800 + 400 = 1,200
200
Find the sum. $153.98 + $72.35 =
$226.33
200
Find the difference. 3,152 - 981 =
2,171
200
Complete the number sentence and tell which property you used. (68 + 77) + 54 = 68 + _____________
(77 + 54); associate property
300
Complete the number sentence. Tell which property you used. 98 - 98 =
0; subtraction rule for zero
300
Round to the nearest dollar and estimate. $6.73 + $5.29 =
$7.00 + $5.00 = $12.00
300
Add. 25,846 + 16,985 =
42,831
300
Subtract. 85,206 - 63,479 =
21,727
300
Round to the greatest place and estimate. 23,820 + 46,216 =
20,000 + 50,000 = 70,000
400
Complete the number sentence. Tell which property you used. 50 + (25 + 38) = (50 + ____) + 38
25; associative property
400
Round to the greatest place and estimate. 3,476 1 1,015 =
3,000 - 1,000 = 2,000
400
Find the sum. 47,902 + 72,135 =
120,037
400
Subtract. 10,600 - 5,251
5,349
400
Round to the nearest dollar and estimate. $6.35 - $2.93 =
$6.00 - $3.00 = $3.00
500
Complete the number sentence. Tell which property you used. 90 - 0 =
90; zeros in subtraction
500
Round to the greatest place and estimate. 55,883 - 15,751 =
60,000 - 20,000 = 40,000
500
Find the sum. 62,141 + 37,436
99,577
500
Find the difference. 27,000 - 3,688 =
23,312
500
Find the difference. 942,385 - 461,803 =
480,582