Count by
1st grade math
Animals
Subtract and Name the Strategy
Doubles
100

Count by 5's up to 50.

5, 10, 15, 20, 25, 30, 35, 40, 45, 50

100

10+4

14

100

Animal that starts with the letter E

Elephant 

100

10 - 6 = 

4; Sums of 10

100

2 + 2 = 

4

200

Count by 10's to 100.

10, 20, 30, 40, 50, 60, 70 80, 90, 100

200

What number comes before 19?

18

200

Animal that’s start with the letter B

Bird

200

11 - 2 = 

9; Count back 1, 2, or 3

200

5 + 5 = 

10

300

Count by 2's up to 20

2, 4, 6, 8 10, 12, 14, 16, 18, 20

300

2 tens =

20

300

Animal that starts with the letter  D

Dog

300

7 - 7 = 

0; Subtract all

300

7 + 7 = 

14

400

Count by 1's from 90 to 105.

90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105

400

19, 20, __, 22 

21

400

Animal that’s starts with the letter Z

Zebra

400

4 -  0 = 

4 Subtract none

400

6 + 6 = 

12

500

Count backwards by 1's from 25 to 10.

25, 24, 23, 22, 21 ,20, 19, 18, 17, 16, 15, 14, 13, 12, 11, 10

500
2 tens and 3 ones =

23

500

Animal that starts with the letter O

Ostrich

500

12 - 6 = 

6; Doubles!!

500

9 + 9 = 

18

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