Envision Topic 1 Review

Front

What is a number family?

Back

A number family is a group of related numbers that can be used to create different math sentences. For example, the numbers 7, 8, and 15 can form the equations 7 + 8 = 15 and 15 - 8 = 7.

Front

What is a ten-frame?

Back

A ten-frame is a visual tool used in math to help understand numbers and addition. It is a rectangle divided into 10 squares, where you can place counters to represent numbers.

Front

How do you find the sum of 9 + 4 by making a 10?

Back

To find the sum of 9 + 4, you can make a 10 by taking 1 from 4 to add to 9, making it 10, and then adding the remaining 3. So, 10 + 3 = 13.

Front

What does 'counting on' mean in addition?

Back

'Counting on' means starting from the first number and counting up to find the total. For example, for 6 + 2, you start at 6 and count 7, 8.

Front

What is the equation for 6 + 2?

Back

The equation for 6 + 2 is 8.

Front

What is the sum of 7 + 4?

Back

The sum of 7 + 4 is 11.

Front

What does it mean if 6 makes the equation true?

Back

If 6 makes the equation true, it means that when you substitute 6 into the equation, the equation balances or equals the correct answer.

Front

What is addition?

Back

Addition is the process of finding the total or sum by combining two or more numbers.

Front

What is subtraction?

Back

Subtraction is the process of finding the difference between two numbers by taking one number away from another.

Front

What is a math sentence?

Back

A math sentence is a statement that shows a mathematical relationship between numbers, such as 3 + 2 = 5.