Sums and Differences
Inequalities
Order of Operation
Property of Sums
Invariant Principles
100
the sum of r and s
What is r + s
100
How do you know that 7 < 10
What is 7 + 3 = 10
100
12 - 3 + 2
What is 11
100
What is the possible equivalent form using the commutative principle: m + (4 - n)
What is (4 - n) + m
100
189 + 315
What is 504
200
Compute 23 + 12
What is 35
200
How do you know that 12 < 5
What is 12 = 5 + 7
200
15 - (4 +3)
What is 8
200
use commutative principle to find an other possibel equivalent form: (r + s) -t
What is (s + r) - t
200
295 + 637
What is 932
300
Compute y + 13
What is "not possible"
300
How do you know that 4 < 21
What is 4 + 17 = 21
300
change the subtraction equation to addition equation 10 - 7 = 3
What is 7 + 3 = 10
300
Which principle applies to the following (5 + 6) + 9 = 5 + ( 6 + 9)
What is associative principle
300
453 - 298
What is 155
400
Show 10 is an even number
What is 5 + 5 = 10
400
8 > 5 is an example of an ___
What is inequality
400
Change the addition equation to the corresponding subtraction equation 17 +29 = 46
What is 46 - 17 = 29
400
What principle applies: (5 + 6) + 9 = 9 + (5 + 6)
What is Commutative Principle
400
find x 5713 - 1429 = 5813 - y
What is 1529
500
0 is a numeral in this set of numbers
What is counting numbers
500
If x + y = z and y is a counting number, how is x related to z?
What is x is less than or equal to z
500
x + a = r, find the corresponding subtraction equation
What is r - x = a
500
What principle applies [(a + b) + c] + d = [a + (b + c)] + d
What is associative principle
500
Find x 3875 + x = 3855 + 4759
What is 4739
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