Subtract within 20 using 10 frames

This video tutorial teaches subtraction within 20 using ten frames. It begins by defining subtraction as taking away, removing, or comparing numbers. The video explains the use of ten frames as a visual tool to help group numbers for addition and subtraction. It addresses a common misunderstanding that subtraction is not commutative, unlike addition. The tutorial provides examples of subtracting 16 minus 7 and 13 minus 5 using ten frames, demonstrating how to decompose numbers to simplify subtraction. The lesson concludes by reinforcing the concept of using ten frames for subtraction.

What does it mean to subtract in mathematics?

• To divide numbers

• To take away or remove

• To multiply numbers

• To add numbers together

Which of the following statements is true about subtraction?

• Subtraction can be done in any order

• Subtraction is commutative like addition

• Subtraction is not commutative

• Subtraction always results in a larger number

What is a ten frame used for?

• To divide numbers

• To write numbers in words

• To visualize numbers

• To multiply numbers

How can 16 minus 7 be simplified using ten frames?

• By dividing 16 by 7

• By multiplying 16 by 7

• By decomposing 7 into 6 and 1

• By adding 7 to 16

What is the result of 13 minus 5 using ten frames?

• 10

• 9

• 8

• 7