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Estimation
Addition and Subtraction
Patterns
Algebra
Mixed Bag
100
What is the best estimate for 67 + 13?
70 + 10 = 80
100
Find the sum: 3,712 + 1,793 + 812
6,317
100
What is the rule in the growing pattern if there are 4 squares in the first row, 6 squares in the second row, and 8 squares in the third row?
+ 2
100
If x = 25, what is the value of 100 + x?
100 + 25 = 125
100
What is half of 300?
150 because 150 + 150 = 300
200
Jalen had to read 235 pages in a book. She already read 106 pages. Estimate how many pages she has left to read.
200 - 100 = 100
200
Ms. Gardner has 215 math tests to grade. She graded 82 tests on Saturday and 120 tests on Sunday. How many more tests does she have left to grade?
82 + 120 = 202 215 - 202 = 13 13 tests left to grade
200
What rule does this pattern follow? $ $ @ * $ $ @ * $ $ @ *
AABC
200
If w = 36, what is the value of w - 12?
36 - 12 = 24
200
How many degrees does an obtuse angle measure?
Greater than 90 but less than 180
300
Ms. Gardner spent $58 on a new outfit for picture day and $24 on new shoes for picture day. About how much money did she spend?
$60 + $20 = $80
300
1,000 - 101
899
300
What would the 18th term in this pattern be? & & ! ! ! & & ! ! !
!
300
What does b equal to make 18 - b = 10 true?
8 18 - 8 = 10
300
What is Ms. Gardner's favorite color?
GREEN
400
Kairee has $46.00 in his wallet. He earns $19.00 for babysitting. About how much money does Kairee have?
$50 + $20 = $70
400
Erin bought a new soccer ball for $17.59 and a new set of markers for $8.43. How much money did she spend?
$17.59 + $8.43 = $26.02
400
Keyah made the pattern below with her digit cards. What number is missing from the pattern? 12, 15, ____, 21, 24, 27
18
400
What is the value of m to make m + 20 = 80 - 8 true?
52 80 - 8 = 72 52 + 20 = 72
400
What is 8 x 8?
64
500
Estimate to compare using < , > , or = : 233 + 157 _________ 412 + 101
200 + 200 = 400 400 + 100 = 500 400 < 500
500
Alexis spent $72.56 on her Halloween costume. Jada spent $83.27 on her costume. What is the difference between the cost of the two costumes?
$83.27 - $72.56 = $10.71
500
Determine which numbers are missing in the pattern below. 68, 72, 76, ____, ____, 88, 92
80, 84
500
What value of k would make 68 - k = 39 true?
29 68 - 29 = 39
500
What time does Ms. Gardner go to sleep on school nights?
9:00 pm