EC
B3-9: Subtracting 3 (from up to 20)
ExpertChild
Name:
Date:
Start Time:
:
A+
0
Grade:
Number of mistakes:
End Time:
A
1
B
2-3
:
C
4-6
D
7+
Use number line to subtract.
[1]
5 – 3 = ___
×
0
1
2
3
4
5
6
7
8
9
10
11
Start on 5
Count back 3 numbers and arrive at 2
5
five
–
3
=
minus three
2
equals
two
Count and write three numbers backward. Subtract.
[2]
6
7
8
9
⇒9−3= 6
[3]
____ ____
7
⇒ 7 − 3 = ____
[4]
____ ____
4
⇒ 4 − 3 = ____
[5]
____ ____
8
⇒ 8 − 3 = ____
Copyright  2006 by ExpertChild Institute of Education.
1
B3-9: Subtracting 3 (from up to 20)
ExpertChild
EC
0
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15
Count and write three numbers backward. Subtract.
[1]
____ ____
9
⇒ 9 − 3 = ____
[2]
____ ____
3
⇒ 3 − 3 = ____
[3]
____ ____
14
⇒ 14 − 3 = ____
[4]
____ ____
18
⇒ 18 − 3 = ____
[5]
____ ____
10
⇒ 10 − 3 = ____
[6]
____ ____
6
⇒ 6 − 3 = ____
[7]
____ ____
5
⇒ 5 − 3 = ____
Copyright  2006 by ExpertChild Institute of Education.
2
B3-9: Subtracting 3 (from up to 20)
ExpertChild
EC
0
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15
Subtract. Hint: Use number line to subtract.
[1]
3–3=
[9]
7–3=
[2]
4–3=
[10]
8–3=
[3]
5–3=
[11]
4–3=
[4]
6–3=
[12]
9–3=
[5]
7–3=
[13]
3–3=
[6]
8–3=
[14]
5–3=
[7]
9–3=
[15]
4–3=
[8]
4–3=
[16]
6–3=
Copyright  2006 by ExpertChild Institute of Education.
3
B3-9: Subtracting 3 (from up to 20)
ExpertChild
EC
0
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15
Subtract.
[1]
10 – 3 =
[9]
5–3=
[2]
11 – 3 =
[10]
7–3=
[3]
12 – 3 =
[11]
11 – 3 =
[4]
13 – 3 =
[12]
14 – 3 =
[5]
14 – 3 =
[13]
13 – 3 =
[6]
15 – 3 =
[14]
4–3=
[7]
4–3=
[15]
9–3=
[8]
6–3=
[16]
8–3=
Copyright  2006 by ExpertChild Institute of Education.
4
B3-9: Subtracting 3 (from up to 20)
ExpertChild
EC
0
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15
Subtract.
[1]
7–3=
[9]
3–3=
[2]
8–3=
[10]
4–3=
[3]
10 – 3 =
[11]
6–3=
[4]
18 – 3 =
[12]
5–3=
[5]
20 – 3 =
[13]
9–3=
[6]
13 – 3 =
[14]
8–3=
[7]
4–3=
[15]
7–3=
[8]
8–3=
[16]
10 – 3 =
Copyright  2006 by ExpertChild Institute of Education.
5
EC
B3-9: Subtracting 3 (from up to 20)
ExpertChild
Write the subtraction sentence.
[1]
[4]
___ − ___ = ___
[2]
___
___
___
___
___
___
___
___
___
[5]
___
___
___
[3]
[6]
___
___
___
Copyright  2006 by ExpertChild Institute of Education.
6
EC
B3-9: Subtracting 3 (from up to 20)
ExpertChild
Addition Review
Add.
[1]
10 + 4 =
[8]
8 + 10 =
[2]
6 + 10 =
[9]
5+7=
Think, 18 + 8
[3]
8 + 18 =
[10]
14 + 8 =
[4]
9 + 12 =
[11]
2 + 19 =
[5]
3 + 35 =
[12]
17 + 5 =
Think, 87 + 2
[6]
[7]
87
+ 2
20
+ 9
[13]
[14]
Copyright  2006 by ExpertChild Institute of Education.
24
+ 3
10
+ 6
7