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More Singapore Math Lessons

Number Bond Games

### Subtracting Ones

**Singapore Math subtraction using number bonds**

Example:

Subtract a One-Digit Number from a Two-Digit Number - Subtraction using number bonds

19 − 6 = ?

13 − 2 = ?

17 − 7 = ?

14 − 3 = ?**Singapore Math Grade 1A Subtraction**

This video show how to subtract a single digit number from a two digit number that has a number in the ones place smaller then the value being subtracted

Example:

11 − 3 = ?**Examples of subtraction using number bonds**

17 − 3 = ?

12 − 4 = ?

16 − 8 = ?

14 − 6 = ?

18 − 9 = ?

13 − 5 = ?**Singapore Math subtraction using number bonds (word problems)**

Examples:

1) Jane has 17 gel pens. She gave away 4 gel pens to her friend. How many gel pens is Jane left with?

2) Joyce has 18 toy cars. She gave away 5 of them. How many does Joyce have left?

### Subtracting Tens

### Subtracting Tens and Ones

Step 1: Use Number bond to split. 74 = 60 + 14, 28 = 20 + 8

Step 2: Subtract the tens. 60 − 20 = 40

Step 3: Subtract the ones. 14 − 8 = 6

Step 4: 40 + 6 = 46

Step 4: 72 − 28 = 46

**Subtraction with Number Bonds and the Arrow Way**

Example:

56 - 30

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

More Singapore Math Lessons

Number Bond Games

Videos, worksheets, solutions and activities to help students learn subtraction using number bonds in Singapore Math.

In this lesson, we will learn

- subtracting ones using number bonds
- subtracting tens using number bonds
- subtracting tens and ones using number bonds.

For example, 17 − 3 = ?

Step 1: Use Number bond to split. 17 = 10 + 7

Step 2: Subtract the ones. 7 − 3 = 4

Step 3: 10 + 4 = 14

Step 4: 17 − 3 = 14

For example, 12 − 7 = ?

Step 1: Use Number bond to split. 12 = 10 + 2

Step 2: Subtract the ones. 10 − 7 = 3

Step 3: 2 + 3 = 5

Step 4: 12 − 7 = 5

For example, 69 − 2 = ?

Step 1: Use Number bond to split. 69 = 60 + 9

Step 2: Subtract the ones. 9 − 2 = 7

Step 3: 60 + 7 = 67

Step 4: 69 − 2 = 67

For example, 72 − 8 = ?

Step 1: Use Number bond to split. 72 = 60 + 12

Step 2: 12 − 8 = 4

Step 3: 60 + 4 = 64

Step 4: 72 − 8 = 64

Example:

Subtract a One-Digit Number from a Two-Digit Number - Subtraction using number bonds

19 − 6 = ?

13 − 2 = ?

17 − 7 = ?

14 − 3 = ?

This video show how to subtract a single digit number from a two digit number that has a number in the ones place smaller then the value being subtracted

Example:

11 − 3 = ?

17 − 3 = ?

12 − 4 = ?

16 − 8 = ?

14 − 6 = ?

18 − 9 = ?

13 − 5 = ?

Examples:

1) Jane has 17 gel pens. She gave away 4 gel pens to her friend. How many gel pens is Jane left with?

2) Joyce has 18 toy cars. She gave away 5 of them. How many does Joyce have left?

For example, 95 − 40 = ?

Step 1: Use Number bond to split. 95 = 90 + 5

Step 2: 90 − 40 = 50

Step 3: 50 + 5 = 55

Step 4: 95 − 40 = 55

For example, 78 − 24 = ?

Step 1: Use Number bond to split. 78 = 70 + 8, 24 = 20 + 4

Step 2: Subtract the tens. 70 − 20 = 50

Step 3: Subtract the ones. 8 − 4 = 4

Step 4: 50 + 4 = 54

Step 4: 78
− 24 = 54

Step 1: Use Number bond to split. 74 = 60 + 14, 28 = 20 + 8

Step 2: Subtract the tens. 60 − 20 = 40

Step 3: Subtract the ones. 14 − 8 = 6

Step 4: 40 + 6 = 46

Step 4: 72 − 28 = 46

Example:

56 - 30

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