Using variables to write expressions
Properties of Operations
The Distributive Property
Mental Math
Evaluating Expressions
100
Write an algebraic expression for each situation. The difference of a number T and 22
What is T-22
100
Tell what property is shown. 19+(42 + 8) = (19+42)+8
What is the Associative Property of Addition
100
The distributive property says A(B+C) =
A(B+C) = AB+AC
100
Compute mentally 89+32+8
= 32+8+89 = 40+89 = 129
100
What are the two steps to solve an expression with a variable.
The two steps are 1. replace 2. solve extra 100 points if you remembered to solve with PEMDAS!!
200
Write an algebraic expression for each situation. 10 times a number G
What is 10G
200
Find the missing number __x(14x32) = (5x14)x32
__x(14x32) = (5x14)x32 = _5_x(14x32) = (5x14)x32
200
Use the distributive property to find the missing number. 6(32) = 6(__) + 6(30)
What is 2 6(_2_) + 6(30)
200
Compute mentally 8x39
What is 8(30)+8(9) = 240+72= 312 or 8(40)-8(1) = 320-8 = 312
200
solve 9x when x = 9
when x = 9 9x = 9x9 = 81
300
Write an algebraic expression for each situation. 4 less than 5 times a number B
What is 5B-4
300
Tell what property is shown. 42x8x3= 42 x 8 x 1 x 3
What is The Identity Property of Multiplication
300
Use the distributive property to find the missing number. 8(99) = 8(100)-__(1)
What is 8 8(99) = 8(100)-_8_(1)
300
Compute mentally 2x38x5
What is 2x5x38= 10x38= 380
300
Replace and solve 3x+9 when X = 7
2x7+9 = 23
400
Write an algebraic expression for each situation. A number P increased by 22
What is P+22
400
Tell the missing number (43x1)x4= ___x43
(43x1)x4= ___x43 = (43x1)x4= _4_x43
400
How would you break 8(26)
What is 8(20)+8(6)
400
compute mentally 721-395
What is 721 -400+5 = 321+5 = 326
400
Replace and solve 8C-6C when C = 5
8C-6C when C = 5 8x5-6x5 =40-30=10
500
Write an algebraic expression for each situation. 15 divided by a number R
What is 15/R
500
Find the missing number (41x43) x (3x19) = (41 x __) x (19 x 43)
(41x43) x (3x19) = (41 x __) x (19 x 43)= (41x43) x (3x19) = (41 x _3_) x (19 x 43)
500
3(21)-3(11) = 3(__) = 30
What is 10 3(21)-3(11) = 3(_10_) = 30
500
compute mentally 28+26+32+14
What is 28+26+32+14 = 28+32+26+14 = 60+40 =100
500
Replace and solve F = 10 G= 4 (4F)/2-5xG
4F/2-5xG = (4x10)/2-5x4 = 40/2-5x4 20-5x4 20-20 0
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