Addition
26 + 31
57
15 + 24 + 21
60
210
What place do we always start in when doing addition and subtraction?
Ones place
54 - 22
32
58 + 33
91
27 + 12 + 56
95
Lennon's book had 38 pages. Ollie's book had 42 pages. How many pages did their books have together?
80 pages
When you need to put together numbers to find a total you...
Add
95 - 49
46
126 + 243
369
56 + 29 + 44
129
Madilyn had 47 marbles. Sophia had 29 marbles. How many more marbles did Madilyn have than Sophia?
18 more marbles.
What does place value mean?
Ones, tens, hundreds.
164 - 23
141
182 + 239
421
104 + 35 + 48
187
Erin saw 232 cars on her road trip. She saw 129 cars on the way back. How many cars did she see on her trip?
361 cars.
When you need to find the difference between two numbers you...
Subtract
230 - 154
76
527 + 265
792
124 + 354 + 287
765
Farrah spent 312 dollars on toys at the store. Exton spent 278 dollars. How much more money did Farrah spend than Exton?
34 dollars.
What is an addend?
Part of an addition problem.
509 - 251
258