How to add

To add we count up. Start at and count up .

The “” sign means equal to. is equal to .

When adding any number by the only number that will change in your answer is the tens place.

Line up all numbers vertically. Add up the ones column first:

Carry the “10” in 15. Now add the tens place:

The sum is 135.

Line up the numbers so the ones and tens places are aligned.

, carry the

Answer:

To find the sum, you need to add. Line up all numbers vertically. Add up the ones column first:

Carry the “10” in 15. Now add the tens place:

The sum is 125.

Since Meredith is spending money over time, we need to add all four values together to find out how much she spent in all!

The correct answer is 841. We start in the ones column on the far right and add 6 and 5. This is 11 so we have to carry the tens digit (1) to the next column and being the ones digit (also a 1) down. Adding the tens column we get

so once again we carry the 1 and bring the 4 down. Next we add the hundreds column which

which we bring down. Thus the final answer is 841.

The only sequence from above that adds each time is

This is an addition problem because we want to know how many total pieces of chocolate Zack ate all together. We can add or