Rounding
Round to the nearest tenths place
32.60
32.6
Add.
58.0 + 3.6 =
61.6
Subtract
92.1 - 32.6 =
59.5
Theater tickets for children cost $5. Adult tickets cost $3 more. If two adults and two children buy theater tickets, what is the total cost?
$26
Estimate the sum or difference
5,602 - 2,344 =
3,300
Round to the nearest million
489,334,209
489,000,000
Add.
40.5 + 22.3 =
62.8
Subtract
52.7 - 36.9 =
15.8
Luis has a $10 bill and three $5 bills. He spends $12.75 on the entrance fee to an amusement park and $8.50 on snacks. How much money does he have left?
$3.75
Estimate the sum or difference
7.4 + 3.1 + 9.8 =
20
Round to the nearest thousands place
324,650
325,000
Add.
34.587 + 21.098 =
55.685
Subtract
85.76 - 12.986 =
72.774
Alex earns $125 from her paper route each month, but she spends about $20 each month on personal expenses. To pay for a school trip that costs $800, about how many months does she need to save money?
About 8 months
Estimate the sum or difference
2,314 + 671 =
3,000
Round to the nearest tenths place
32.073
32.1
Add.
43.1000 + 8.4388 =
51.5388
Subtract
32.7 - 2.328 =
30.372
Patty is a member of the environmental club. Each weekday, she volunteers for 2 hours. On Saturday and Sunday, she volunteers 3 hours more each day. Which expression shows how to find the number of hours she volunteers in one week?
A - 2+5
B - 2+2+2+2+2+5+5
B - 2+2+2+2+2+5+5
Estimate the sum or difference
54.23 - 2.39 =
52
Round to the nearest whole number
154.53
155
Add.
In December the snowfall was 0.03 inches and in January it was 2.1 inches. What is the total snowfall?
2.13 inches
Subtract
23.3 - 1.32 =
21.98
Marco's goal is to eat only 2,000 calories each day. One day for breakfast he consumed 310 calories, for lunch he consumed 200 more calories than breakfast, and for dinner he consumed 800. Did he make his goal?
Yes
Estimate the sum or difference
87,087 + 98,000
185,000