Estimation
Estimate 3x47 by rounding to the highest place.
150
80 x 60
4,800
6 x 7
42
Woodland Intermediate School has 9 fourth grade classrooms, and each classroom has 22 students. How many students are in fourth grade at Woodland.
198 fourth graders
50 x 4 =
2,000
8 x 8
64
Ms. P's class made thanksgiving turkeys. If she has 23 students and each turkey has 8 feathers. Estimate how many feathers the class will need for the class to complete the turkeys.
About 160 feathers.
Estimate 56 x 8 by rounding to the highest place.
480
2 x 8 =
16
8 x 7
56
Ms. Seldon brings candy for her students. She has 21 students and each student gets 4 pieces of candy. How much candy did she bring?
84 pieces of candy
Estimate 155 x 3 by rounding to the highest place.
600
30 x 6=
180
9 x 6
54
Ms. C made 47 trays of chocolate chip cookies, and each tray had 6 chocolate chips cookies on them. How many chocolate chips cookies did she make?
282 chocolate chips cookies
Estimate 3,265 x 7 by rounding to the highest place.
21,000
4,382 x 7 =
30,674
9 x 9 =
81
12 x 5
60
A girl scout troop sells 425 boxes of Thin Mints and 211 boxes of Caramel de Lites in 1 week. About how many boxes of cookies do they sell in 4 weeks?
2,400 boxes of cookies