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45 + 23= ____
1.
Start at the largest addend
(45).
2. Look at the second addend.
Notice the number of tens.
Make two ten hops DOWN
since 23 has 2 tens.
3. Look at the ones in the
second addend. Since there
are 3 ones in 23, hop three
places.
4. The last number is the sum!
The sum is 68!
Created by M. Gregory ©
Adding on a Hundreds Chart
1.
Start at the largest addend
(45).
2. Look at the second addend.
Notice the number of tens.
Make two ten hops DOWN
since 23 has 2 tens.
3. Look at the ones in the
second addend. Since there
are 3 ones in 23, hop three
places.
4. The last number is the sum!
The sum is 68!
Created by M. Gregory ©
Adding on a Hundreds Chart