Rounding Review
Jared's bearded dragon weighs 457 grams.
ON A NUMBER LINE Round the Lizard's weight to the nearest TEN.
460 grams
My cat weighs 10 lbs and my mom's cat weighs 9 lbs.
Find the difference between the weight of my cat and my mom's cat.
1 lb
What time does this clock show?
big hand: 3
small hand: 3
3:15
A puppy blinks his eyes 6 times every minute.
Round to the nearest ten to estimate how many times a puppy blinks his eyes every minute.
10
60 lbs
Levi's backpack weighs 12 lbs.
ON A NUMBER LINE Round the backpack weight to the nearest TEN.
10 lbs
Anahlese buys two packs of candy.
One bag of skittles weighs 71 grams. One bag of M&Ms weighs 24 grams.
What is the difference between the weight of the cashews and the yogurt raisins?
The girl's school gets out at 2:48.
Round that time to the nearest TEN MINUTES.
2:50
A train burns 457 lbs of coal in one minute.
Round to the nearest ten to estimate how many lbs of coal a train burns in one minute.
Use that answer to estimate how many lbs of coal are burned IN TWO MINUTES.
457 rounded is 460.
460 + 460 = 920 lbs of coal
What is the difference between the weights they lift?
38 lbs
Ms. Saffer drank 289 mL of water today.
ON A NUMBER LINE round to the nearest hundred.
300 mL
Mrs. Bergeron's dog weighs 100 lbs.
Mrs. Springer's dog weighs 78 lbs.
What is the difference between their dog's weights?
22 lbs
Ms. Saffer gets to school at 8:01. Round this time to the nearest 10 minutes.
Oliver and AJ get to class first at 8:26. Round this time to the nearest ten minutes.
Estimate how long Ms. Saffer is in the classroom before Oliver and AJ get here.
8:01 rounds to 8:00
8:26 rounds to 8:30
Ms. Saffer is in the classroom for about 30 minutes.
Your heart beats 97 times per minute.
Round to the nearest ten to estimate how many times it beats per minute.
Use that answer to find about how many times your heart beats in 2 minutes.
200 times
The dog starts his walk at 8:31 am. They return from their walk 17 minutes later. What time does their walk end?
8:48
The TV screen is 56 inches wide.
ON A NUMBER LINE round to the nearest ten.
Play doh weighs 52 grams.
What is the difference between the weight of the slime and the play doh?
9 grams
Football practice starts at 7:06. It ends at 7:47.
Round each time to the nearest ten.
Use your answers to estimate how long football practice is.
7:47 rounds to 7:50
football practice is 40 minutes long
Ms. Saffer loses the class' TV remote 268 times a day.
a. Round to the nearest ten to estimate how many times Ms. Saffer loses the remote in one day.
b. Use that answer to estimate how many times she loses it in two days.
c. AND calculate to actually find out how many times Ms. Saffer loses the remote.
a. 270 times
b. 540 times in two days
c. 536 times.
If you workout for 5 minutes each day, how many minutes do you workout for in an entire week?
35 minutes
The teacher needs to new pencils for the class. There are 15 students in their class.
But the packs of pencils only come in packs of ten.
Round the number of students the nearest ten.
How many packs of pencils does the teacher need to buy?
15 rounded to the nearest ten is 20.
She needs to buy 2 packs.
I take a bag of peanuts and a bag of raisins on the airplane with me. My peanuts weight 208 grams and my raisins weight 189 grams.
What is the difference between the weight of my raisins and peanuts?
19 grams
Big hand: slightly past the 11
Small hand: one spot BEFORE the 4
What time does this clock show?
AND Round this time to the nearest ten.
11:19
11:20
Toddlers learns 17 new words per day.
a. Round to the nearest ten to estimate how many new words they learn per day.
b. Use that answer to estimate how many words they can learn in 2 days.
c. calculate to actually find out how many words the toddler learners in two days.
d. What is the difference between your estimate and the actual answer.
a. 20
b. 40
c. 34 words
d. 40- 34 = 6
Alex reads 287 pages per day. Brielle reads 500 pages per day. How many more pages does Brielle read than Alex?
213 pages