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Place Value and Representing Numbers
Rounding and Estimating
Addition multi-digit and mental addition
Subtraction multi-digit and mental subtraction
Miscellaneous
100
These numbers in order from least to greatest: 7496, 7946, 7694
What is 7496, 7694, 7946
100
Explain rounding in your own words with an example.
answers vary
100
One day 1058 mm of snow fell on the slopes of Vorlage Ski Hill. The next day 2098 mm of snow fell. This is the amount of snow that fell altogether.
What is 3156?
100
Kiara was born on August 10, 2002. This is how many years she has been alive.
What is 9?
100
Write 4686.5 in words.
What is four thousand, six hundred, eighty-six and five tenths.
200
Write this number in 3 different forms: 7309
answers will vary
200
7850 has already been rounded. This is the number is could have been before it was rounded.
What is 7850, 7851, 7852, 7853,7854?
200
Use mental math to solve: 354 + 512
What is 354 + 500 = 854 + 12 = 866
200
Mr. Crawford gave work to the whole school. He had 1894 worksheets when he started. When he was done he had 405 remaining. This is the amount of worksheets he gave away.
What is 1299 worksheets?
200
This is an example of when estimating would be important. Explain why.
What is shopping, making copies etc.
300
In the number 7982 what this is value of the number in the hundreds.
What is 900?
300
A CD player costs $98. A portable TV costs $379. Erin has $500. Does she have enough money to buy both? How do you know? Use rounding to explain.
What is YES?
300
1)Estimate and then 2)solve the following question: 4578 +7142
Estimate: 12000 Answer: 11720
300
Mental Subtraction: Describe one way to use mental math to find 1000 - 896
What is 1004 - 900 = 104 or other possible answers.
300
Name the 4 different ways discussed in class to represent numbers.
What are base ten blocks, place value chart, words, stardard form and expanded form?
400
In the number 2456.64 this number is in the hundredths spot.
What is 4?
400
Is the estimate high or low? How do you know? 256 + 378 --- Estimated sum: 600
What is low?
400
Dalton has 1768 trading cards. His grandma gives Dalton her collection of 673 trading cards. How many cards does Dalton now have? Use expanded form to solve the problem.
What is 2441 trading cards?
400
1) Estimate then 2) Subtract 3059 -298 ------
What is estimate: 2800 answer: 2761
400
Use expanded form to add 1756 +2469 -------
What is 1000 + 700 + 50 + 6 +2000 + 400 + 60 + 9 ---------------------------- = 3000 + 1100 + 110 + 15 = 4100 + 110 +15 = 4210 + 15 = 4225
500
Represent this number using base ten blocks 4.69
Answer with base ten blocks
500
Find two different numbers that round to 2000 when rounded to the nearest thousand and to the nearest hundred.
What are any 2 numbers between 1950 and 2000?
500
The sum of two consecutive numbers is 853. These are the 2 numbers.
What are 426 and 427?
500
A 3-digit number is subtracted from a 4 digit number. The difference is 521. This is what the two numbers could be.
Many variations.
500
William estimated the difference of 725 and 410 as 325. How might he have estimated?
What is 725 - 400 = 325 (William rounded the 410 to the nearest hundred but left the first number the same.)