Estimate by rounding to the nearest whole number
22.8 - 13.9
9
100
7,502 + 9,909
17,411
100
2.97 + 0.35
3.32
100
Joy has a $10 bill, a $20 bill, and 2 $5 gift certificates. She uses the gift certificates towards the purchase of a CD for $14.00, then pays for the rest in cash. How much money does Joy have left after purchasing the CD?
$26.00
200
What is 78 rounded to the nearest ten?
80
200
Estimate by rounding to the nearest hundred
237 + 345
500
200
64,782 - 33,925
30,857
200
31.3 - 18.79
12.51
200
Paige takes riding lessons 5 days per week for 2 hours each day. Maggie takes guitar lessons twice a week for 2 1/2 hours each day, and piano lessons five days a week for one hour each day. Which girl spends more on lessons? How many more hours?
They spend equal time taking lessons!
300
What is 114.537 rounded to the nearest hundredth?
114.54
300
Estimate by rounding to the nearest ten
$11.33 + $32.43
$40.00
300
835,029 - 26,332
808,697
300
88.8 + 4.277 + 78.95
172.027
300
Anna bought a sandwich for $2.49 and a drink for $1.55. She gave the clerk $5.05. How much change should she get back?
$1.01
400
What is 723.15 rounded to the nearest tenth?
723.2
400
Estimate by rounding to the nearest whole number
8.76 + 12.32 + 6.18
27
400
35,996 + 49,801
85,797
400
Peter's vegetable garden is rectangular. It is 7.75 feet long and 3.65 feet wide. He wants to put a fence around the edge of his garden to keep animals from eating his vegetables. How many feet of fence does he need?
22.8 feet of fence
400
Jessica worked 5 hours each day Monday through Friday. On Saturday and Sunday, she worked 2 hours less each day than she did during the week. How many total hours did Jessica work during the week and weekend?
31 hours
500
What is 199.99 rounded to the nearest hundredth?
199.99
500
Lowell bought a drink for $1.90, a sandwich for $2.25, and an apple for $0.75. Rounding to the nearest whole number, what is the best estimate for how much money he spent?
$5.00
500
Myronville School District has 23,081 students, and Saddleton School District has 45,035 students. How many more students are there in Saddleton than in Myronville?
21,954 more students in Saddleton
500
Isaac had $132.82 in his bank account. He withdrew $12.75 on Monday and $38.50 on Friday. How much money does he have left in his bank account?
$81.57
500
Sabrina has a coupon for $5.50 off her purchase at a clothing store. If she buys a shirt for $12.75, a pair of shorts for $10.20, and a skirt for $12.50, what is the total cost of her purchase?