Subtracting 2-Digit Numbers with Base-Ten Blocks

This video tutorial demonstrates how to subtract two-digit numbers using base 10 blocks. It provides two examples: subtracting 85 from 62 and 42 from 36. The tutorial explains the process of subtracting ones and tens, including trading tens for ones when necessary. By the end, viewers will understand how to use base 10 blocks to perform subtraction effectively.

What is the first step in subtracting 85 minus 62 using base 10 blocks?

• Subtract the tens

• Subtract the ones

• Trade a ten for ones

• Add the ones

How many ones are left after subtracting 2 ones from 5 ones in the example 85 minus 62?

• 4

• 1

• 2

• 3

What is the result of subtracting 6 tens from 8 tens in the example 85 minus 62?

• 4

• 3

• 2

• 1

In the example 42 minus 36, what do you do when you cannot subtract 6 ones from 2 ones?

• Subtract the tens first

• Trade a ten for 10 ones

• Add more ones

• Skip the subtraction

After trading a ten for 10 ones in the example 42 minus 36, how many ones are left?

• 4

• 5

• 6

• 7

What is the final difference in the example 42 minus 36?

• 7

• 6

• 5

• 4