Rounding
Round to the nearest 10
a notebook weighs 312 grams
A pencil weighs 10 grams
A camera weighs 365 grams
Notebook 310 grams
pencil stays 10 grams
camera 370 grams
The school assembly started at 12:17 p.m. and ends at 12:45 p.m. How many minutes long was the school assembly?
The school assembly lasted 28 minutes.
Jake brings and apple and an orange to school. The weight of both pieces of fruit together is 417 grams. The apple weighs 223 grams. What is the weight of Jake's orange?
417g-223g= 194g
30x3
90
12/3=
4
Millie's fish tank holds 403 liters of water. She emptied out 185 liters of water to clean the tank. Estimate how many liters are left in the tank by rounding.
403L= 400L
185L=200L
400-200= 200L
There is about 200L of water left in the tank
Bob watches a movie that is 94 minutes long on Sunday. He watches a movie that is 141 minutes long on Monday night. How much time did Bob actually spend watching movies?
151 min+ 94 min= 245 mins watching movies.
Millie's fish tank holds 403 liters of water. She emptied out 185 liters of water to clean the tank. How many liters of water are left in the tank?
403-185=218 liters of water is left
45x3=
135
If I have 16 stars and i put them in 2 equal groups, how many stars are in each group?
8 stars in each group
Bob watches a movie that is 94 minutes long on Sunday. He watches a movie that is 141 minutes long on Monday night. Decide how to round the minutes. then estimate the total minutes Bob watched movies onSunday and Monday.
151= 150
94=90
150 mins+ 90 mins= 240 mins
Mrs. Bella roasts a turkey for 55 minutes. She checks it and decides to roast it for an additional 46 minutes. Use a tape diagram to find the total minutes Mrs. Bella roasts the turkey.
101 minutes
If almonds weigh 223 grams, a bag of raisins weigh weigh 355 grams. What is the total weight of the almonds and raisins?
the total weight is 578 grams
12x4=
48
21/7=
3
List the numbers that round to 400 when rounding to the nearest 100.
368 342. 420. 492. 449. 464
368
420
449
John went to town he left at 2:07 p.m. It took him 17 minutes to go from his house to the store. Use a number line to show what time he arrived at the store.
He got to the store at 2:24 p.m.
Cup A holds 160 mL
Cup B holds 280 mL
Cup C holds 237 mL
What is the total capacity of all three cups?
160mL+ 280mL+ 237mL= 677 mL
30x7
210
18/3=
6
Round to the nearest 50.
362
159
362= 350
159= 150
If Susan arrived at the store at 2:24 p.m. and left the store at 2:53 p.m. How long did Susan spend at the store?
Susan was at the store for 29 minutes.
Cup A holds 160 mL
Cup B holds 280 mL
Cup C holds 237 mL
What is the difference between cups B and C?
280mL- 237mL= 43 mL
The difference between the two cups is 43 mL.
67x4=
268
33/3=
11