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# Subtraction Review Press Here Directions Read through each of the slides. Follow the directions that are given. Use paper and pencil to solve each math.

## Presentation on theme: "Subtraction Review Press Here Directions Read through each of the slides. Follow the directions that are given. Use paper and pencil to solve each math."— Presentation transcript:

Subtraction Review Press Here

Directions Read through each of the slides. Follow the directions that are given. Use paper and pencil to solve each math problem. When you are finished please click on the at the bottom of the screen. Keep an open mind. Have Fun!!

Supplies You will need: Paper Pencil Before you get started activate your brain buttons!

Lesson When subtracting 2 digit numbers there are some tips that you need to remember. Please click on the video below (white box) for a quick review of 2 digit subtraction. It will remind you when you need to regroup and when not to.

You Try It!! 87A. 43 -34 121 C. 53 Please use a paper and pencil to solve the subtraction below. Once you are done please click on the box next to the right answer. Remember, you want to start in the 1s column first and check to see if you need to regroup.

Great Job!!! Way to Go!! I Knew You Could Do It!!! 53 is correct. 7-4 =3 and 8-3=5 There was no need to regroup.

You chose 43, nice try but the answer is incorrect. Look at your basic fact subtraction. Did you start in the 1s column 7-4=? And then the 10s:8-3=? Go back and try again. I know you can do it!!!

You chose 121, nice try but the answer is incorrect. Look at the sign. Did you accidentally add instead of subtract? Go back and try again. I know you can do it!!!

Let’s try another!! Remember you always have to start in the ones column to see if you need to regroup. 47 08 -39 12 18

You chose 12, nice try but the answer is incorrect. Look at your 1’s column, is there more on the floor……then you need to go next door and borrow a 10. Go back and try it again. I know you can do it!!!

Great Job!!! Way to Go!! I Knew You Could Do It!!! 08 is correct. 3 17 4 7 - 3 9 0 8 Since you started in the 1’s column you found that there was more on the floor so you had to go next door and borrow from the 10’s.

You chose 121, nice try but the answer is incorrect. Look at the sign. Did you accidentally add instead of subtract? Go back and try again. I know you can do it!!!

Let’s try another!! Remember you always have to start in the ones column to see if you have to regroup. 62 33 -28 44 34

You chose 33, nice try but the answer is incorrect. Look at your basic fact subtraction 12-8=? Go back and try again. I know you can do it!!!

You chose 44, nice try but the answer is incorrect. Check your 10’s column did you take one away from the top and forget to change the top number? Go back and try again. I know you can figure it out!!!

Great Job!!! Way to Go!! I Knew You Could Do It!!! 08 is correct. 5 12 6 7 - 2 8 3 4 Since you started in the 1’s column you found that there was more on the floor so you had to go next door and borrow from the 10’s.

Let’s try another!! Remember if there is more on the floor you have to go next door and regroup. 94 43 -57 37 151

You chose 43, nice try but the answer is incorrect.. Check your 10’s column did you take one away from the top and forget to change the top number? Go back and try again. I know you can do!!!

Great Job!!! Way to Go!! I Knew You Could Do It!!! 08 is correct. 8 14 9 4 - 5 7 3 7 Since you started in the 1’s column you found that there was more on the floor so you had to go next door and borrow from the 10’s.

You chose 151, nice try but the answer is incorrect. Look at the sign. Did you accidentally add instead of subtract? Go back and try again. I know you can do!!!

Let’s try another!! 65A. 22 -43 24 C. 108 Remember you have to check to see if you need to regroup. You might not have to regroup on every subtraction problem.

Great Job!!! Way to Go!! I Knew You Could Do It!!! 22 is correct. 5-3 =2 and 6-4=2 There was no need to regroup.

You chose 24, nice try but the answer is incorrect. Look at your basic fact subtraction. Did you start in the 1’s column 7- 4=? And then the 10’s 6-4=? Go back and try again. I know you can do it!!!

You chose 108, nice try but the answer is incorrect. Look at the sign. Did you accidentally add instead of subtract? Go back and try again. I know you can do it!!!

Congratulations! You have finished the subtraction review. Please quietly join the rest of the class.

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