two parts and one whole
What does it mean to decompose?
to break apart
If I have 10 and 4 ones, how much do I have?
14
What is 10 + 3?
13
4
What does the whole represent?
The total number/how many altogther
When using teen numbers, what number is always in a group?
10
16
What is 9 - 2?
7
30
5
What does "ones" mean?
single/by themselves
If I have 10 and 9 ones, how much do I have?
19
What is 12 and 4 more?
16
12, 13, __, 15
14
If 4 and 4 are my two parts, what is my whole?
8
What does represent mean?
show your work
If I decompose 18, what would I have?
10 and 8 ones
If you add 0 to any number, what happens?
you get the same number
2
Name all the number pairs to 5
2 and 3
4 and 1
5 and 0
Name all the steps in 3R 2S
read, retell, represent, solve, sense
If I decompose 17, what would I have?
10 and 7 ones
What is 3 less than 10?
7
Johnny had 8 apples. He gave 3 away. How many does he have left?
5