Counting Up to Subtract

The video tutorial introduces subtraction strategies, focusing on counting back and counting up methods. It explains how counting up can be more efficient than counting back, especially for larger numbers. The tutorial demonstrates using number lines, hundreds charts, and 10 frames to solve subtraction problems by counting up. These tools help visualize the process and make subtraction easier to understand.

What is a more efficient strategy than counting back when solving subtraction problems?

• Counting forward

• Counting sideways

• Counting up

• Counting down

When using a number line, how many hops are needed to find the difference between 15 and 12?

• 4 hops

• 5 hops

• 3 hops

• 2 hops

What is the difference between 20 and 14 when using the counting up strategy on a number line?

• 4

• 5

• 6

• 7

How many numbers do you count up from 9 to 13 using a hundreds chart?

• 2

• 3

• 4

• 5

Using 10 frames, how many counters are added to go from 16 to 19?

• 5 counters

• 4 counters

• 3 counters

• 2 counters