Angela Sisk

362 + 527 For this strategy, you will use the Expanded Form for each number 362 = 300 + 60 + 2 and 527 = 500 + 20 + 7

First, add only the hundreds to get a partial sum.

300 + 500 = 800 Next, add only the tens for another partial sum.

60 + 20 = 80 Then, add just the ones to get another partial sum.

2 + 7 = 9 You did it! Now, add the three partial sums together and you have your answer.

800 + 80 + 9 = 889

Example: Steps to solve the addition problem 362 + 527

Angela Sisk- TPT @StudlyPeaches

Steps to solve the addition problem 47 + 26

Start at 47 and add 26.

First add 20. One way to do this is by moving down 2 tens because the number 26 has a 2 in the tens place. 57 67

Next count on 6 because the number 26 has a 6 in the ones place. Do this by moving forward 6 numbers.

68 69 70 71 72 73

You will stop on 73 and that is your answer.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100

Angela Sisk- TPT @StudlyPeaches

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100

Steps to solve the subtraction problem 82-45

Start at 82 subtract 45

First subtract 40. One way to do this is by moving up 4 tens because there is a 4 in the tens place in 45. 72 62 52 42

Next count back 5 ones because the number 45 has a 5 in the ones place. Do this by moving backward 5 numbers.

41 40 39 38 37

You will stop on 37 and that is your answer.

Angela Sisk- TPT @StudlyPeaches

~Draw a blank line and start with 57 on the left side. You’ll move forward since you’re adding. 57

~Draw three large jumps and count on 3 tens because there is a 3 in the tens place in 35. 57 67 77 87

~Draw five small jumps and count on 5 ones because there is a 5 in the ones place in 35. 57 67 77 87 88 89 90 91 92

You did it! The number you stop on is your answer.

+10 +10 +10

+10 +10 +10

Example: Steps to solve the addition problem 57+35

+1 +1 +1 +1 +1

Angela Sisk- TPT @StudlyPeaches

~Draw a blank line and start with 86 on the right side. You’ll move backwards since you’re subtracting. 86

~Draw four large jumps and count backward 4 tens because there is a 4 in the tens place in 42. 46 56 66 76 86

~Draw two small jumps and count backwards 2 ones because there is a 2 in the ones place in 42. 44 45 46 56 66 76 86

You did it! The number you stop on is your answer.

-10 -10 -10

Example: Steps to solve the addition problem 86-42

-10 -10 -10

-10

-10 -1 -1

Angela Sisk- TPT @StudlyPeaches

Example: Steps to solve the addition problem 429+231

~Draw a blank line and start with 429 on the left side. You’ll move forward since you’re adding. 429

~Draw two large jumps and count on 2 hundreds because there is a 2 in the hundreds place in 231. 429 529 629

~Draw three smaller jumps and count on 3 tens because there is a 3 in the tens place in 231. 429 529 629 639 649 659

~Draw one small jump and count on 1 one because there is a 1 in the ones place in 231. 429 529 629 639 649 659 660

You did it! The number you stop on is your answer.

+100 +100

+100 +100

+100 +100

+10 +10 +10

+10 +10 +10 +1

Angela Sisk- TPT @StudlyPeaches

Example: Steps to solve the subtraction problem 538-252

~Draw a blank line and start with 538 on the right side. You’ll move backwards since you’re subtracting.

538

~Draw two large jumps and count back 2 hundreds because there is a 2 in the hundreds place in 252. 338 438 538

~Draw five smaller jumps and count back 5 tens because there is a 5 in the tens place in 252. 288 298 308 318 328 338 438 538

~Draw two small jumps and count back 2 ones because there is a 2 in the ones place in 252. 286 287 288 298 308 318 328 338 438 538

You did it! The number you stop on is your answer.

-100 -100

-100 -100 -10 -10 -10 -10 -10

-100 -100

-10 -10 -10 -10 -10 -1 -1

Angela Sisk- TPT @StudlyPeaches

Key for representing/drawing base ten blocks.

100= 10= 1=

Draw/represent each number using base ten blocks.

Add them together by adding hundreds together first, then tens, then ones.

Example: Steps to solve the addition problem 425+142

x

x

x x x

x +

x x

+ x

x

x x

x x

x

+ = 567

425 142

Angela Sisk- TPT @StudlyPeaches

Key for representing/drawing base ten blocks.

100= 10= 1=

Draw/represent each number using base ten blocks.

Add them together by adding hundreds together first, then tens, then ones.

Example: Steps to solve the addition problem 365+146

x

x

x

x x

x

+ x

x

x

x

x x

+

x

265 146

x

x

x

x

x

x

x

x

x

x

= 411

Angela Sisk- TPT @StudlyPeaches

Key for representing/drawing base ten blocks.

100= 10= 1=

Draw/represent the greatest number using 2 hundreds because there are 2 hundreds in the number 276, then 7 tens because there are 7 tens in the number 276, and 6 ones because there are 6 ones in 276.

Cross out the lowest number by crossing out 1 hundred because there is 1 hundred in the number 154, then 5 tens because there are 5 tens in 154, and 4 ones because there are 4 ones in 154.

You did it! Count how many hundreds, tens and ones are left to find your answer. This problem has 1 hundred, 2 tens and 2 ones left so the answer is 122.

Example: Steps to solve the addition problem 276-154

x

x x

x

x

x x

276

x x

x

x

x x

-154

=122

Angela Sisk- TPT @StudlyPeaches

Key for representing/drawing base ten blocks.

100= 10= 1=

Draw/represent the greatest number using 4 hundreds because there are 4 hundreds in 434, then 3 tens because there are 3 tens in the number 434, and 4 ones because there are 4 ones in the number 434.

Cross out the lowest number by crossing out 2 hundreds because there are 2 hundreds in 215, then 1 ten because there is 1 ten in 215.

You did it! Count how many hundreds, tens and ones are left to find your answer. This problem has 2 hundreds, 1 ten and 9 ones left so the answer is 219.

Example: Steps to solve the addition problem 434-215

x

x

x

x

x

434

Since there are not 5 ones to take away you have to trade a ten in for 10 ones. Then take away 5.

x

x

x

x

x

x

x

x

x

x

x

x

x

x

-215

Angela Sisk- TPT @StudlyPeaches

Thank you so much for your interest in my product! I can’t wait to hear how you were able to use it in your classroom. Please feel free to email me or comment on my page. I am fairly new to TpT @studlypeaches but plan to post a bunch this summer when I’m home.

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https://www.teacherspayteachers.com/Store/Studly-Peaches