Partial Sums

Front

What is a partial sum?

Back

A partial sum is the sum of a part of a series of numbers, often used in addition problems to break down larger sums into smaller, more manageable parts.

Front

What is the first step in finding a sum using partial sums?

Back

The first step is to break the numbers into their place values (hundreds, tens, and ones) to make addition easier.

Tags

CCSS.2.NBT.B.7

Front

How do you add 530 and 145 using partial sums?

Back

First, add the hundreds: 500 + 100 = 600. Then, add the tens: 30 + 40 = 70. Finally, add the ones: 0 + 5 = 5. Now, add the partial sums: 600 + 70 + 5 = 675.

Tags

CCSS.2.NBT.B.7

Front

What is the sum of 423 and 170 using partial sums?

Back

First, add the hundreds: 400 + 100 = 500. Then, add the tens: 20 + 70 = 90. Finally, add the ones: 3 + 0 = 3. Now, add the partial sums: 500 + 90 + 3 = 593.

Tags

CCSS.2.NBT.B.7

Front

What is the sum of 530 and 155 using partial sums?

Back

First, add the hundreds: 500 + 100 = 600. Then, add the tens: 30 + 50 = 80. Finally, add the ones: 0 + 5 = 5. Now, add the partial sums: 600 + 80 + 5 = 685.

Tags

CCSS.2.NBT.B.7

Front

What is the sum of 413 and 160 using partial sums?

Back

First, add the hundreds: 400 + 100 = 500. Then, add the tens: 10 + 60 = 70. Finally, add the ones: 3 + 0 = 3. Now, add the partial sums: 500 + 70 + 3 = 573.

Tags

CCSS.2.NBT.B.7

Front

What is the sum of 675 and 200 using partial sums?

Back

First, add the hundreds: 600 + 200 = 800. Then, add the tens: 70 + 0 = 70. Finally, add the ones: 5 + 0 = 5. Now, add the partial sums: 800 + 70 + 5 = 875.

Tags

CCSS.2.NBT.B.7

Front

What is the sum of 323 and 180 using partial sums?

Back

First, add the hundreds: 300 + 100 = 400. Then, add the tens: 20 + 80 = 100. Finally, add the ones: 3 + 0 = 3. Now, add the partial sums: 400 + 100 + 3 = 503.

Tags

CCSS.2.NBT.B.7

Front

What is the sum of 530 and 105 using partial sums?

Back

First, add the hundreds: 500 + 100 = 600. Then, add the tens: 30 + 0 = 30. Finally, add the ones: 0 + 5 = 5. Now, add the partial sums: 600 + 30 + 5 = 635.

Tags

CCSS.2.NBT.B.7

Front

What is the sum of 675 and 50 using partial sums?

Back

First, add the hundreds: 600 + 0 = 600. Then, add the tens: 70 + 50 = 120. Finally, add the ones: 5 + 0 = 5. Now, add the partial sums: 600 + 120 + 5 = 725.

Tags

CCSS.2.NBT.B.7