Subtraction Techniques with Base Ten Blocks

This video tutorial covers subtraction with regrouping using base ten blocks. It begins with an introduction to the materials needed, followed by a detailed walkthrough of two subtraction problems: 16-7 and 52-36. The video explains how to use base ten blocks to visualize the subtraction process, including trading tens for ones when necessary. A practice problem is provided at the end for viewers to try on their own.

What materials are needed for learning subtraction with regrouping?

• Graph paper and pencils

• Calculator and ruler

• Base ten blocks, place value mat

• Textbook and worksheets

What is the first step in the subtraction process demonstrated?

• Begin with the first number

• Start with the second number

• Regroup immediately

• Guess the answer

How many ones are used to represent the number 16 in the video?

• 16 ones

• 6 ones

• 10 ones

• 1 ten and 6 ones

What does the teacher trade to make subtraction of 7 from 16 possible?

• 2 fives for 10 ones

• 1 ten for 10 ones

• 5 ones for 5 tens

• 10 tens for 1 one

What is the result of 16 minus 7?

• 7

• 8

• 6

• 9

How many tens are initially used to represent the number 52?

• 5 tens

• 52 tens

• 2 tens

• 10 tens

What is the correct sequence of actions for regrouping in the subtraction of 52 minus 36?

• Add more tens before subtracting

• Trade one ten for ten ones, then subtract

• Subtract first, then regroup

• Ignore tens, subtract ones only

What is the final result of 52 minus 36?

• 17

• 16

• 15

• 14

What is the next step after clearing the mat?

• Discuss the result

• Review the previous steps

• Take a break

• Start a new problem

What is the practice problem given to the students?

• 30 minus 15

• 94 minus 39

• 52 minus 36

• 16 minus 7