Instructional Video5:08
Curated Video

Missing Numbers in Subtraction and Multiplication: Solving for the Unknown

3rd - 5th
This video shows the process for solving the problem presented in SATs 2022 Paper 3 Q12, which involves finding missing numbers. Students will learn how to use multipication, division, and subtraction to solve for the unknown value in...
Instructional Video6:32
Curated Video

Strategies for Finding Missing Numbers in Addition and Subtraction

K - Higher Ed
In this lesson, students are introduced to another strategy for problem solving: number bonds. Number bonds are useful when finding the unknown number in a problem, such as 8 + ? = 11. They can be used for addition and subtraction,...
Instructional Video1:08
Curated Video

Missing Numbers in Addition: Solving for the Unknown

3rd - 5th
This video shows the process for solving the problem presented in SATs 2022 Paper 2 Q3, which involves finding a missing number. Students will learn how to use addition and subtraction to solve for the unknown value in an addition problem.
Instructional Video21:41
Curated Video

Identify knowns and unknowns in subtraction equations

Pre-K - Higher Ed
Pupil outcome: I can identify knowns and unknowns in subtraction equations. Key learning points: - Equations can be represented using part-part-whole or bar models. - If the minuend is missing, you add the subtrahend and difference. - To...
Instructional Video10:54
Curated Video

Adding Rational Numbers in Decimal Form | Grade 7 Math | 7.NS.A.1 💚

9th - 12th
In this math video we will learn the rules for adding rational numbers in decimal form. We will begin by reviewing the three steps to adding or subtracting decimals. We will line the decimal values up vertically using the decimal points....
Instructional Video3:35
Curated Video

Finding Missing Parts in Part-Whole Models

K - 12th
This video teaches learners how to find a missing part in a number sentence, using a part-whole model.
Instructional Video28:07
Curated Video

Find the difference between consecutive numbers

Pre-K - Higher Ed
Pupil outcome: I can recognise and use consecutive numbers. Key learning points: - In a subtraction equation, when the subtrahend is one less than the minuend, all except one is subtracted. - Numbers that are one more or one less than...
Instructional Video5:47
Curated Video

Using Subtraction to Find Missing Numbers

3rd - 5th
This video shows the process for solving the problem presented in SATs 2022 Paper 3 Q5, which involves using subtraction to find missing numbers. Students will understand how to analyze data in a table to ascertain which arithmetic is...
Instructional Video6:16
Curated Video

Finding Number Patterns

K - 8th
Mr. Addit reviews the definition of a pattern and explains that to find a pattern in a number sequence, we must first identify the rule. He also demonstrates how to first determine the rule of a number sequence in order to determine the...
Instructional Video24:43
Curated Video

Use number pairs to 10 in subtraction contexts

Pre-K - Higher Ed
Pupil outcome: I can use number pairs to ten to solve subtraction problems and equations. Key learning points: - Our knowledge of pairs that sum can help when solving subtraction problems and equations. - Quickly remembering these number...
Instructional Video24:41
Curated Video

Add and subtract two from even numbers within 10

Pre-K - Higher Ed
Pupil outcome: I can add and subtract two from even numbers within 10 Key learning points: - Adding two to an even number gives the even number after. - Subtracting two from an even number gives the even number before. - When we count...
Instructional Video31:46
Curated Video

Use number bonds to 10 to add/subtract one-digit and two-digit numbers

Pre-K - Higher Ed
Pupil outcome: I can use number bonds to add and subtract one-digit and two-digit numbers. Key learning points: - When the ones digits in an equation sum to ten, the sum in the equation will always be a multiple of ten. - When...
Instructional Video21:06
Curated Video

Add and subtract two from odd numbers within 10

Pre-K - Higher Ed
Pupil outcome: I can add or subtract two from odd numbers within 10 Key learning points: - Adding two to an odd number gives the odd number after. - Subtracting two from an odd number gives the odd number before. - When we count forwards...
Instructional Video3:50
Curated Video

Solving Unknown Amounts Using Addition and Subtraction Fact Families

K - 5th
The video demonstrates how to solve for unknown amounts using addition and subtraction fact families. The teacher explains the concept of fact families and how they can be represented in a triangle. The video provides examples of how to...
Instructional Video5:24
Curated Video

Solving Equations with Number Bonds

K - 5th
This video is a math lesson aimed at teaching students how to solve the unknown number in an equation by creating a number bond. The video covers topics such as addition, subtraction, commutative property, fact families, and how to...
Instructional Video15:31
Curated Video

How to Subtract Rational Numbers that are Decimals! | 7.NS.A.1 | Grade 7 Math 💚

9th - 12th
In this math video we will learn how to subtract rational numbers that are decimals. We will begin by review how to subtract decimals using 3 easy steps. Step 1 - Line up the decimal points vertically. Fill in any 0's where necessary....
Instructional Video4:30
Brian McLogan

Learn how to subtract two polynomials by including missing place values

12th - Higher Ed
👉 Learn how to subtract polynomials. To subtract polynomials, we first simplify the polynomials by removing all brackets. Then, we combine like terms. Like terms are terms that share the same base and power for each variable. When you...
Instructional Video24:26
Curated Video

Recall one and two more or less than numbers to ten

Pre-K - Higher Ed
Pupil outcome: I can recall known addition and subtraction facts within 10 Key learning points: - When we add one, we can see this as the number after in our count. We can think of this as one more. - When we subtract one, we can see...
Instructional Video24:23
Curated Video

Use column subtraction to subtract from a 2- or 3-digit number

Pre-K - Higher Ed
Pupil outcome: I can use column subtraction to subtract from a 2- or 3-digit number. Key learning points: - Start by subtracting the number with the smallest place value first. - The minuend always appears first in a column subtraction....
Instructional Video22:52
Curated Video

Solve one and two-step problems in different contexts

Pre-K - Higher Ed
Pupil outcome: I can solve one and two-step problems in different contexts. Key learning points: - When a part is missing, subtract the other part from the whole. - When the whole is missing, add the parts together. - Look for the...
Instructional Video34:56
Curated Video

Bridge 100 by subtracting in multiples of 10

Pre-K - Higher Ed
Pupil outcome: I can use number facts to 20 to subtract multiples of 10 and bridge 100. Key learning points: - The language of unitising helps us to use number facts to 20 to subtract multiples of 10 crossing the hundreds. - If 14...
Instructional Video23:57
Curated Video

Add and subtract fractions with the same denominator in a range of contexts

Pre-K - Higher Ed
Pupil outcome: I can add and subtract fractions with the same denominator in a range of contexts. Key learning points: - If fractions have the same denominator they can be added or subtracted. - Number lines can represent addition and...
Instructional Video3:54
Curated Video

Solving Unknowns with Addition and Subtraction Fact Families

K - 5th
In this video, students learn how to solve for unknown amounts using addition and subtraction fact families. Through examples and step-by-step instructions, they will understand how to use fact families to find missing addends and...
Instructional Video24:33
Curated Video

Solve subtraction problems using knowledge of 10 and a bit

Pre-K - Higher Ed
Pupil outcome: I can solve subtraction problems using knowledge of 10 and a bit in different contexts. Key learning points: - The teens numbers can be represented as ten and a bit. - We can solve addition and subtraction problems with...