Rounding to the nearest 10s
Estimate to the nearest tens.
89 + 71 =
160
Amy is collecting stamps for the students in Ms. Kelly's class. She has 35 stamps. She gets 53 more. About how many stamps does Amy have?
90
estimate to the nearest tens
115+107
230
Ms. Kelly ordered pizza for the afternoon tutorial students. On Monday she ordered 11 pizzas. On Tuesday she order 14 pizzas. About how many pizzas did she order all together?
20
estimate to the nearest hundreds
417+281=
700
Ms. Culkin wanted to order coloring books for her third and fourth grade students. There are 127 students in third grade and 95 students in fourth grade. To the nearest ten, about how many should she order?
230
estimate to the nearest thousands
1,047+1,119=
2,000
Mr. K bakes cakes. He baked 2,345 cakes in 2019. He baked 2, 225 in 2020. About how many cakes did he bake in 2019 and 2020? (nearest hundred).
4,500
estimate to the nearest ten hundreds
12,497+10,345=
22,800
HSS wants to count all of its students. There are 87 Kinder students, 83 first grade students, 92 second grade students, 77 third grade students, 69 fourth grade students and 67 fifth grade students.
To the nearest tens, about how many students are in the entire school?
480