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1 Solve the Subtraction Problems ➖
Subtract and write the answer.
12 − 5 =
15 − 8 =
14 − 6 =
13 − 7 =
16 − 9 =
11 − 4 =
17 − 8 =
18 − 9 =
20 − 7 =
15 − 6 =
19 − 10 =
14 − 9 =
2 Subtract — Vertical Style ⬇️
Subtract the bottom number from the top number.
3 Use the Number Line 📏
Start at the first number and hop backward.
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
15 − 7 =
18 − 5 =
13 − 8 =
20 − 6 =
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4 Find the Missing Number 🔍
What number goes in the blank?
15 − = 8
− 6 = 9
18 − = 11
− 8 = 7
13 − = 4
− 5 = 12
20 − = 14
− 9 = 6
5 Subtract Through 10 🎯
First subtract to get to 10, then subtract the rest. Example: 13 − 5 → 13 − 3 − 2 → 10 − 2 = 8
6 Word Problems 📖
Read each story. Write the number sentence and the answer.
- 1. There are 15 fish in a tank. 7 swim away. How many fish are left?
− =
- 2. A farmer has 18 carrots. He feeds 9 to his rabbits. How many carrots remain?
− =
- 3. There were 20 students in class. 8 went to the library. How many stayed?
− =
- 4. Kai had 16 marbles. He lost 7. How many marbles does he have now?
− =
Ex.1: 7, 7, 8, 6, 7, 7, 9, 9, 13, 9, 9, 5
Ex.2: 7, 8, 9, 15, 7, 8
Ex.3: 8, 13, 5, 14
Ex.4: 7, 15, 7, 15, 9, 17, 6, 15
Ex.5: 14−4−2→10−2=8, 15−5−2→10−2=8, 16−6−3→10−3=7
Ex.6: 15−7=8, 18−9=9, 20−8=12, 16−7=9