18-9
9
16+4
20
10, 20, 30, ___
40
Find the number that is in the one's place in 583
3
25-10
15
50-25
25
31+20
51
400, 500, 600, ____
700
Find the number in the hundreds place in 729
7
170 - 10
160
52 - 31
21
145+25
170
450, 460, 470, ___
480
What is the value of 4 in 492?
400
200 + 100
300
78 - 29
49
Kim has 45 cat stickers and she has 15 fish stickers. How many stickers does she have altogether?
60
55, 60, 65, ___
70
What is the value of the 9 in 239?
9
75 + 5
80
Ellen had 200 blocks. She gave her sister 50 blocks. How many blocks does Ellen have left?
150
If Mrs. Mayberry has 20 students, and she gets 5 more, how many students does she have now?
25
125, 120, 115, _____
110
My number is 235. I changed the digit in the hundreds place to a 6. My new number is
635
305 + 10
315