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Find a Rule
Equations
Addition Property
Expressions
Vocabulary
100
The rule, matching equation, and missing numbers for this input-output table x y 6 12 4 10 9 15 7 13 ___ 20
What is Rule: Add 6, x + 6 = y, 14?
100
The value of the variable in this equation 18 - c = 9
What is 9?
100
The missing number in this equation and addition property you used: 23 + ___ = 6 + 23
What is 6 and commutative property?
100
The value of this expression if h = 18 78 + h + 11
What is 107?
100
This addition property says that changing the order of the addends does not change the sum.
What is the commutative property?
200
The rule, matching equation, and missing numbers for this input-output table c d 19 11 16 8 35 27 21 13 56 ___
What is Rule: Subtract 8, c - 8 = d, 48?
200
The value of the variable in this equation 98 = g + 2
What is 96?
200
The missing number in this equation and addition property you used 98 + ___ = 98
What is 0 and identity property?
200
The value of this expression if g = 21 (96 - g) + 7
What is 82?
200
This "number sentence" says that two amount are equal.
What is an equation?
300
The rule, matching equation, and missing numbers for this input-output table j k 44 55 23 34 78 89 67 78 ___ 65
What is Rule: Add 11, j + 11 = k, 54?
300
The value of the variable in this equation $25 + f = $30
What is $5?
300
The missing number in this equation and addition property you used (3 + 7) + 10 = 3 + (7 + ___)
What is 10 and associative property?
300
The value of this expression if f = 15 f + (36 + 12)
What is 63?
300
This property of addition says that changing the way addends are grouped does not change the sum.
What is the associative property?
400
The rule, matching equation, and missing numbers for this input-output table v w 9 18 10 20 3 8 6 12 __ 14
What is Rule: Multiply by 2, v x 2 = w, 7?
400
The value of the variable in this equation 45 = 39 + g
What is 6?
400
The missing number in this equation and addition property you used ___ + 67 = 67
What is 0 and identity property?
400
The value of this expression if d = 6 571 - (105 + d)
What is 472?
400
This is what you use when you don't the value of something in a math problem.
What is a variable?
500
The rule, matching equation, and missing numbers for this input-output table r s 3 9 7 21 9 27 4 12 8 ___
What is Rule: Multiply by 3, r x 3 = s, 24?
500
The matching equation for this problem: There were 19 toys on the floor. Some got picked up. Now there are 12 toys left on the floor.
What is 19 - t = 12 (any variable is fine)
500
The missing number in this equation and addition property you used 16 + (___ + 8)= (16 + 2) + 8
What is 2 and associative property?
500
The value of this expression if j = 9 (6,152 - 5,310) + j
What is 851?
500
This math phrase has numbers and operation symbols, but no equals sign.
What is an equation?