2 Digit Addition
58+12
70
73-57
16
56+36
92
What are "numbers" called in math?
Addends.
Joey wants to learn how to tell time. What math tool will he use to help him?
A clock.
29+67
96
80-14
66
45-36
9
If I have to borrow a ten from the ones side, what is that called?
Regrouping
Emily is having a hard time counting back. What math tool can she use to help her?
15+67
82
54-49
5
61+12
73
What's another word for "equals"?
Sum.
Lisa wants to buy gum at the supermarket. What is she going to use to pay for it?
Cash
96+25
121
77-59
18
84+48
132
What are the following equations called:
8+2=10
2+8=10
10-8=2
10-2=8
Fact family.
Students are learning about tens and ones. What manipulatives can they use to better learn?
Base ten blocks.
57+97
154
76-22
54
62-18
44
What is the following equation called:
300+40+6
Expanded form.
Ben is learning how to count. He doesn't like to use a number line but he loves building. What tool do you think Ben would use?
Linking cubes.