Rounding
Which digits must be in the ones place in order to round down?
0, 1, 2, 3, or 4
What is 52,345 in expanded form?
50,000 + 2,000 + 300 + 40 + 5
What is the sum of 257 and 133?
257 + 133 = 390
Tyler caught 5 fish every week. How many fish will Tyler catch in 7 weeks?
5 x 7 = 35 fish
Which of the following numbers is even? Select all that apply.
A. 274
B. 55
C. 390
D. 123
E. 61
A. 274
C. 390
Round the number 45 to the nearest ten.
50
What is "sixty-one thousand, eight hundred six" in standard form?
61,806
What is the difference of 810 and 477?
810 - 477 = 333
Rachel earns $3,492 from her month check. She pays $1,288 in rent. How much money will she have left over?
$3,402 - $1,288 = $2,204
Kara is thinking of an odd number that rounds to 30. Which of the following numbers is she thinking about?
A. 21
B. 28
C. 33
D. 35
C. 33
Max is thinking of a number that rounds to 70 to the nearest 10. Which of the following could be his mystery number? Select all that apply.
A. 67
B. 73
C. 75
D. 64
E. 78
A. 67 and B. 73
The rest round to 60 or 80.
Decompose the number 385 without using any tens.
A. 38 hundreds, 5 ones
B. 3 hundreds, 8 tens, 5 ones
C. 2 hundreds, 95 ones
D. 3 hundreds, 85 ones
D. 3 hundreds, 85 ones
3 hundreds = 300
85 ones = 85
300 + 85 = 385
Kaitlyn ordered 400 pencils for her teacher. She sharpened 189 of them and put the rest away. How many pencils weren't sharpened?
400 - 189 = 211 pencils
A local cupcake store made 3 dozen cookies and cream flavored cupcakes. They sold 14 cupcakes that same day. How many cookies and cream flavored cupcakes remain to be sold?
3 x 12 (a dozen) = 36 cupcakes
36 - 14 = 22 cupcakes
Which pattern follows the rule "add 4"?
A. 1, 4, 16, 64
B. 4, 8, 12, 15
C. 30, 26, 22, 18
D. 17, 21, 25, 29
D. 17, 21, 25, 29
Which of the following are true statements? Select all that apply.
A. 775 rounded to the nearest ten is 800.
B. 924 rounded to the nearest ten is 930.
C. 846 rounded to the nearest hundred is 800.
D. 491 rounded to the nearest hundred is 500.
E. 605 rounded to the nearest hundred is 610.
C. 846 rounded to the nearest hundred is 800.
D. 491 rounded to the nearest hundred is 500.
Sophia builds a number using 61 hundred blocks and 143 ones. What number did she build?
61 hundreds = 6100
143 ones = 143
6,100 + 143 = 6,243
William had $600 at the Kentucky Derby. He bet $240 on horses and spent $82 on souvenirs. How much money did he take home?
$600 - $240 = $360
$360 - $82 = $278
He will take $278 home.
At a local arcade, Max and his brother were playing games. Max scored 238 tickets. His brother scored twice the amount. How many tickets would both boys have together if they combined their earnings?
Max: 238 tickets
His brother: 476 tickets
238 + 476 = 714 tickets
Bailey collects 6 baseball cards every day. This generates the pattern 6,12,18,… How many baseball cards will Bailey have at the end of the sixth day?
36 baseball cards
6, 12, 18, 24, 30, 36
6 cards every day x 6 days = 36 cards
What is the largest number that rounds to 300 to the nearest hundred and 310 to the nearest ten?
314
315 rounds to 320, which eliminates any greater number
How could 4,753 be expressed? Choose all that apply.
A. 4 thousands, 7 hundreds, 53 tens
B. 4 thousands, 7 hundreds, 5 tens, 3 ones
C. 4 thousands, 6 hundreds, 1 ten, 53 ones
D. 3 thousands, 17 hundreds, 5 tens, 3 ones
E. 3 thousands, 7 hundreds, 5 tens, 3 ones
F. 4 thousands, 7 hundreds, 53 ones
B,D,F
A cargo ship has 9,003 boxes onboard. Out of those boxes 4,777 of them will be delivered to Miami. How many boxes will stay onboard?
9,003 - 4,777 = 4,226 boxes
Elliot bought some packages of pens for his college journalism class. Each package came with 6 pens. He gave 12 of those pens to his friends and kept the remaining 30. How many packages of pens did Elliot end up buying?
___ x 6 = ? total pens
? - 12 = 30
Work backwards!
30 + 12 = 42 total pens
42 divided by 6 or think ___ x 6 = 42
The answer is... 7 packages of pens
Natasha started a savings account with her bank. She saves $30 every month. The first month she had $30 in her bank, then $60, then $90, and so on. How much money will her bank account have after the 9th month of saving?
9 x 30 = $270
30, 60, 90, 120, 150, 180, 210, 240, 270