Vocabulary
What does this symbol mean?
-
subtract or "take away"
Jacob bought a piece of gum for 26 cents. He gave the cashier 50 cents. How much money did he get back?
24 cents
87 + 11 = ___
98
56 - 34 = ___
22
How many tens are in 152?
50
Are these key words for addition or subtraction?
altogether
in all
Addition
Ms. Martin creates 33 math problems. Ms. Christian creates 17 math problems. How many math problems do they create in all?
They created 50 math problems.
33 + 23 = ___
56
84 - 23 = ___
61
What is the expanded form of 112?
100 + 10 + 2
What does this symbol mean?
+
addition or "plus"
Sam sold 42 plants last week. This week he sold 29 plants. How many plants has he sold in the last two weeks?
71
43 + 37 = ___
80
28 - 19 = ___
Complete the pattern:
125, 135, 145, ____, ____, ____
155, 165, 175
Are these key words for addition or subtraction?
how many less
how many fewer
difference
subtraction
Ms. Christian has 34 plants in her house. Stella puts 16 of the plants outside. How many plants are still in the house?
18 plants are still in the house.
98 + 26 = ___
124
174 - 36 = ___
138
What number is in the 100's place?
2345
3
What does this symbol mean?
X
multiplication or "times"
Harry and Niall have 58 toys altogether. Liam has 29 toys. How many more toys do Harry and Niall have?
29 toys
376 + 25 = ___
401
267 - 28 = ___
239
There are 3 rows of pencils. There are 4 pencils in each row. How many pencils are there altogether?
4 + 4 + 4 = 12
3 + 3 + 3 + 3 = 12