Adding
345 + 222
567
48-22
26
15
20
54
100
Write 345 in expanded form (break apart)
300 + 40 +5
689 + 56
745
368-123
245
156
160
189
200
There are 75 students in 3rd grade. Last year there were 56 students. How many more students were there this year than last year?
19 more students this year than last year
789 + 189
978
852-492
360
344
340
436
400
Round to the nearest 100 then subtract
259 - 130
300 - 100 = 200
Mrs. Frazier's math class earned 345 tickets in the month of August. In September they earned 450 more. How many tickets did they earn altogether?
795 tickets
723-489
234
849
850
959
1,000
Round to the nearest 10 then add
438 + 467
440 + 470 = 910
Today 354 kids were at the zoo. Yesterday there were 872 kids. How many kids were at the zoo altogether?
1,226 kids
There were 900 fish in the aquarium. They removed 345 fish and put them in a different tank. How many fish were left in the tank?
555
309
310
1,789
1,800
If the number in the tens place is larger on the bottom, what is the vocabulary word that we use to explain the next step?
REGROUP