The number sentence 3 +5 = 5 + 3 is an example of the _________________ property.
Commutative
100
Round to the greatest place or nearest dollar. Then estimate the sum or difference.
$6.35 - $2.93 =
$3.00
100
Solve.
778 +397 =
1,175
100
Solve.
$73.14 - $9.08 =
$64.06
100
Tell whether you need an exact answer or an estimate. Then solve.
Aba has $20.00. She wants to buy a necklace for $12.59 and a bracelt for $9.99. Does she have enough money?
estimate; no
200
The different ways in which addends can be grouped is an example of the _________________ property.
Associative
200
BONUS POINTS!! You just earned 200 POINTS!
Bonus Points = 200 Points
200
25,846 + 16,985 =
42,831
200
Solve.
3,152 - 981 =
2,171
200
Tell whether you need an exact answer or an estimate. Then solve.
Sal's lunch costs $7.56. He pays with a twenty-dollar bill. How much change should the cashier give Sal?
exact; $12.44
300
Copy and complete. Tell which property of addition you used.
98 + ___ = 76 + 98
76; Commutative Property
300
Round to the greatest place or nearest dollar. Then estimate the sum or difference.
759 +385 =
1,200
300
Solve.
62,141 +37,436 =
99,577
300
Solve.
6,424-2,375 =
4,049
300
Tell whether you need an exact answer or an estimate. Then solve.
On Friday, 3,643 people visited the museum. On Sunday, 2,364 people visited the museum. About how many people visited in all?
Estimate; 6,000 people
400
Copy and complete. Tell which property of addition you used.
___ + 0 = 15
15; Zero Property
400
55,883 - 15,751 =
40,000
400
Solve.
1,354,576 + 678,264 =
2032840
400
Solve.
$900.57 - $63.99 =
$836.58
400
Tell whether you need an exact answer or an estimate. Then solve.
On Thursday, Stone bought an ice cream cone for $1.35 for himself. On Friday, he bought a new car for Mrs. Shaffer that cost $14,564.93. How much money did Stone spend on these two days?
Exact; $14,566.28
500
Copy and complete. Tell which property of addition you used.
50 + (25 + 38) = (50 + __) + 38
25; Associative Property
500
Round to the greatest place or nearest dollar. Then estimate the sum or difference.
88,015 - 2,673 =
87,000
500
What digit is missing?
24,236,8_7 + 24,263 = 24,261,150
8
500
Solve.
10,600-5,251=
5,349
500
Tell whether you need an exact answer or an estimate. Then solve.
Hannah N. won the lottery on Saturday, October 2nd. She won $2,300.87. She decided to spend some of her earnings on a new bicycle that cost $45.67. About how much money did she have left after she bought the bicycle?