Subtraction Strategies and Methods

The video tutorial covers subtraction strategies for solving problems like 11 - 8, 12 - 8, 15 - 8, and 16 - 8. Two methods are demonstrated: 'taking from 10' and 'counting on'. Students are encouraged to use both strategies to find the same result, reinforcing the concept that different methods can lead to the same answer. The lesson concludes with a final problem, 13 - 8, for students to solve using both strategies.

What is the subtraction problem introduced in the lesson?

• 16 minus 8

• 15 minus 8

• 12 minus 8

• 11 minus 8

Which strategy did Henry use to solve 11 minus 8?

• Guessing

• Taking from 10

• Counting on

• Using a calculator

How did Sid's method differ from Henry's?

• Sid copied Henry

• Sid used a different strategy

• Sid guessed the answer

• Sid used a calculator

What is the first step in the 'taking from 10' strategy for 12 minus 8?

• Make a number bond

• Add 8 to 12

• Draw 12 circles

• Count backwards

In the counting on strategy for 12 minus 8, what number do you start with?

• 12

• 8

• 2

• 10

What is the result of both strategies for solving 12 minus 8?

• 6

• 4

• 3

• 5

What is the first step in solving 15 minus 8 using the 'taking from 10' strategy?

• Add 8 to 15

• Subtract 8 from 15

• Draw 15 circles

• Make a number bond

In the counting on strategy for 15 minus 8, what is the final number you count up to?

• 15

• 10

• 12

• 8

What is the leftover part when using the 'taking from 10' strategy for 16 minus 8?

• 6

• 8

• 10

• 2

How many circles are drawn in the counting on strategy for 16 minus 8?

• 7

• 9

• 6

• 8