2 groups of 10
20
How many?
00, 00
2, 4
Give me a fact family!
14-4=10
14-10=4
4+10=14
10+4=14
44
40+4
Count forwards
34, 35, 36, ___, ___, 39
37, 38
5 tens
50
How many? Count by 10's!
oooooooooo
oooooooooo
oooooooooo
10, 20, 30
Give me a fact family!
19+8=27
27-8=19
27-19=8
8+19=27
56
50+6
Count forwards
49, 50, 51, ___, ___, 54
52, 53
6 tens
3 ones
63
What is it counting by?
6, 8, 10, 12, 14, 16
2's!
Give me a fact family!
11-3=8
11-8=3
8+3=11
3+8=11
87
80+7
Count backwards
55, 54, 53, ___, ___,
52, 51
8 groups of 10
7 ones
87
What comes next?
15, 20, 25, 30, 35, ____
40
Give me a fact family!
13+1=14
14-1=13
1+13=14
14-13=1
13
10+3
Count backwards
66, 65, ___, ___,
64, 63
How many tens are in the number 33?
3 tens
3 ones
What come next?
20, 22, 24, _____
26
2,5,7
7-2=5
7-5=2
5+2=7
2+5=7
65
60+5
Count backwards
22, 21, 20, ___, ___
19, 18