Adding
Subtracting
Adding or Subtracting
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100
x - 7 = 12
x = 19
100
x + 8 = 10
x = 2
100
15 = k - 5
k = 20
100
m - 55 = 88
m = 143
100
Who is this? 
A) Albert Einstein
B) Marla Koch
c) Scott Delphina
A) Albert Einstein
200
x - 10 = 5
x = 15
200
k + 7 = 7
k = 0
200
y + 11 = 25
y = 14
200
199 = y + 112
y = 87
200
Who is this?
A) Angela Matson
B) Shakuntala Devi
C) Bobby Johnson
B) Shakuntala Devi
300
8 = -8 + t
t = 16
300
10 = c + 3
c = 7
300
20 = -33 + b
b = 53
300
u - 124 = 553
u = 677
300
Who is this?
A) Tori Spelling
B) Brittany Spears
C) Katherine Johnson
C) Katherine Johnson
400
9 = p - 10
p = 19
400
18 = n + 13
n = 5
400
z + 9 = 10
z = 1
400
875 = 145 + j
j = 730
400
Who is this?
A) Marston Morse
B) Danielle Barnes
C) Melissa Brown
A) Marston Morse
500
g - 1 = 0
g = 1
500
s + 11 = 19
s = 8
500
22 = r - 22
r = 44
500
p - 1034 = 1
p = 1035
500
How do we spell the word we learn in THIS class?
Mathematics