Vocabulary
This means to put things together in math, or get bigger
Adding
1+2=
3
2+ =7
5
What do you get when you put 2 and 5 together.
7
Which Numbers Come next: 8, 10, 12, __, __, __
14, 16, 18
This means to take things apart in math, or get smaller
5+3=
8
6+ =10
4
If I have 8 counters in my hand and put 6 in a box, I have this many left in my hand.
2
Which Numbers Come next: 44, 46, 48, __, __, __
50, 52, 54
To see and know right away
Subatize
6+4=
10
8- =4
4
Cindy has 9 flowers. Sara has some others. Altogether they have 12 flowers. Sara has this many flowers
3
Which Numbers Come next: 22, 24, 26, __, __, __
28, 30, 32
The value of the number
Place Value
8+5=
13
2+ =12
10
Jenny has 7 toy cars. Carl has 8 toy planes. How many toys do they have in all.
15
Which Numbers Come next: 30, 35, 40, __, __, __
45,50,55
A strategy we can use to find numbers. (Hint: A line)
Number line
9+5=
14
18- =10
8
Jane has 9 balloons. 6 are green the rest are red. How many red balloons does she have?
3
Which Numbers Come next: 70, 75, 80,__, __, __
85,90,95