Name a number that can be rounded to 2,670 when rounded to the nearest 10.
Example: 2,673
100
What is the sum of 2,456 and 1,549?
What is 4,005?
100
Find the difference between 234 and 521.
What is 287?
100
Follow these steps to find
879
659.
First subtract 600.
Then, subtract 50.
Then, subtract 9.
What is 220?
200
Use the digits 5, 3 and 2 to demonstrate the associative property.
What is (3 + 2) + 5 = 3 + (2 + 5)?
200
Why should you round to the nearest 10 when asked to find the best estimate?
The answer is nearest to the exact answer.
200
Find the value of y. 87 + 24 + y = 215.
What is 104?
200
Find the difference between 608 - 249.
What is 359?
200
Which are the sums of the hundreds, tens, and ones for 556 + 323?
What is 800 + 70 + 9?
300
Define the identity property?
What is the zero property? Any number plus zero equals itself.
300
Round to the nearest hundred to solve. James rode his bike 284 miles last year. This year he has ridden 123 miles. How many miles has James ridden since last year?
About 400 miles
300
Larry was playing a board game. Larry scored 273 points
on the first game and 248 points on the second game.
How many points did Larry score in all?
What is 521 points?
300
Eric and Kim are on a game show.
Eric has 583 points. Kim has
349 points. How many more
points does Eric have than Kim?
What is 234?
300
What is the expanded form for the sum of 219 + 545?
What is 700 + 60 + 4?
400
56 + 25 is equal to or not equal to 150 - 23.
What is not equal to?
400
Thomas collected 345 baseball cards. Jason collected 219 baseball cards. What is the best estimate for how many more baseball cards Thomas collected than Jason?
What is about 130 baseball cards?
400
Write an addition story for two 3-digit numbers.
Write the answer to your story.
Two part answer
400
eason
Malcolm is trying to find
775
342. He subtracts hundreds
first, then tens, then ones. What
three numbers did Malcolm
subtract to find the answer?
700-300, 70-40 and 5-2.
400
What is the expanded form for the difference between 793 - 528?
What is 265?
500
7 + 3 = n is the related addition fact for what subtraction fact.
What is 10 - 3 = 7 or 10 - 7 = 3.
500
Write a word problem that includes a question about rounding and uses the number sentence 240 + 320.
Example: Denise has 243 legos. Carla has 318 legos. About how many legos do Denise and Carla have altogether?
500
Howie, Theo and Lisa all play basketball. Last month, Theo made 36 points, Howie made 25 points and Lisa made 31 points. Draw a diagram to show how many points Howie and Lisa made last month.