Addition
Round to estimate the sum of the following numbers:
47 + 23
50 + 25 = 75
OR
50 +20 = 70
851- 448 = ?
403
What is 457 rounded to the nearest hundred?
500
What is the value of a quarter?
$0.25
Name the value of the digit in the hundreds place.
9,654
600
What is the sum of 421 + 332 = ?
753
Round to estimate the difference.
96- 22 = ?
96--> 100
22--> 20
100- 20= 80
What is 51 rounded to the nearest 10?
50
Hal has only quarters. He has less than $1.00. Which amount could he have?
A. $0.45
B. $0.65
C. $1.25
D. $0.75
D. $0.75
What is the value of the digit in the ten thousands place?
70,000
Tracy ordered 325 toys and 165 bags of food for her new pet store. Which is the best estimate of the total number of items Tracy ordered?
300 + 200 = 500
There are 842 seats in the school auditorium. 138 seats need repairs. How many seats do not need repairs?
704 seats
Round 5,890 to the nearest thousand.
6,000
Ally has one $5 bill and two $1 bills. How much money does Ally have?
$7
What form is this number written in?
50,000+ 4,000+ 300+ 20+1
Expanded Form
A theater has 348 seats on the bottom level and 376 seats in the balcony. How many seats are there?
724 seats
918- 427 = ?
491
4 or less, let it _______.
5 or more, raise the _______.
rest; score
A cashier gives a customer change. She gives 1 quarter, 1 dime, and 3 pennies. What is the value of the change?
$0.25+ $0.10+ $0.03 = $0.38
A soccer stadium has twenty-five thousand, seven hundred thirty-nine seats. What is the number of soccer stadium seats in standard form?
A. 27,139
B. 25,139
C. 25,739
D. 2,579
C. 25,739
Marco goes bowling and scores 76 points in the first game. In the second game he scores 55 points. How many points does Marco score?
131 points
There are 246 girls and 229 boys at the zoo. After lunch, 164 of the children go home. About how many children are still at the zoo?
A. 320
B. 480
C. 640
D. 90
A. 320
246 --> 250
229 --> 230
164 --> 160
250+ 230= 480
480- 160= 320
Round 62,276 to the nearest ten thousand.
62,000
A team sweatshirt costs $38. What is this cost rounded to the nearest ten dollars?
$40
The crayon factory has boxes of 5 thousands, 6 hundreds and 3 tens. If the crayon factory adds a box of 1 ten thousand crayons, how many crayons does it have now?
A. 5,631
B. 1,563
C. 15,630
D. 10,563
C. 15,630