2-digit
52+37
89
324+235
559
52 ___ 32
52 > 32
5 rows
3 columns
5+5+5
3+3+3+3+3
5x3
Christy cut a piece of ribbon that was 24 inches long.
She cut another piece of ribbon that was 43 inches.
How many inches of ribbon did Christy cut
altogether?
67 inches of ribbon
45-20
25
expand out:
625-213
600+20+5
200+10+3
-------------
400+10+2 = 412
600 ___ 600
600 = 600
What is the multiplication equation?
4+4+4+4+4
4x5=20
A chipmunk needs to gather 90 nuts for the winter time. He has gathered 54 so far. How many more does he need?
36 more
Use expanded form:
63+35
60+3
30+5
---------
90+8=98
876-542
334
542 ___547
542 < 547
Write a repeated addition equation?
3x2
3+3
2+2+2
Ms. Johnson’s class ordered 37 slices of pizza for their party. The students ate 29 of the slices. How many slices are left?
8 slices
58+35
93
435+368
regroup or no regroup?
803
regroup
345 ___ 233
345 > 233
What are all the equations?
****
****
4+4
2+2+2+2
4x2
Carly has $35. She spent 18 dollars at the toy store, and 12 dollars at the candy store. How much money does she have left?
Step 1: 35-18=17
Step 2: 17-12=5
95-57
regroup or no regroup?
38
regroup
852-646
206
1,643 ___ 1,625
1,643 > 1,625
Write the repeated addition and solve:
5x6
5+5+5+5+5+5=30
6+6+6+6+6=30
Jenny and Noah like to play video games. Noah had 92 games and gave Jenny 26 of them. Then he bought 11 games at a yard sale. How many games does Noah have now?
step 1: 92-26=66
step 2: 66+11=77