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Vocabulary
Addition Equations
Subtraction Equations
Subtraction
100

The answer to an addition problem

sum

100

T + 45 = 100

T = 55

100

77 - T = 48

T = 29

100

Try to use mental math:

100-35

65

200

The answer to a multiplication problem 

product
200

34 + Y = 202

y = 168

200

R - 68 = 132

R = 200

200

Try to use mental math:

500- 254

246

300
A letter in math that represents a missing /unknown number

variable

300

125 + T = 468

T = 343

300

900 -  B =  721

B = 179

300

704-356

348

400

The answer to a subtraction problem 

difference

400

W + 211 = 1000

789

400

Z - 222 = 896

Z = 1,118

400

1000- 561

439

500

The answer to a division problem

quotient

500

X + 165 = 900

x= 735

500

1389 - W = 1002

W = 387

500

1045 - 698

347