18-9
9
16+4
20
10, 20, 30, ___
40
Find the number that is in the one's place in 583
3
25 rounds to
50-25
25
31+20
51
400, 500, 600, ____
700
Find the number in the hundreds place in 729
7
63 rounds to
60
50 - 5
45
145+25
170
450, 460, 470, ___
480
What is the value of 4 in 492?
400
77 rounds to
80
200 - 100
100
Kim has 45 cat stickers and she has 46 fish stickers. How many stickers does she have altogether?
91
55, 60, 65, ___
70
What is the value of the 9 in 239?
9
1 rounds to
Ellen had 200 blocks. She gave her sister 50 blocks. How many blocks does Ellen have left?
150
If Mrs. Mayberry has 21 students, and she gets 19 more, how many students does she have now?
125, 120, 115, _____
110
My number is 235. I changed the digit in the hundreds place to a 6. My new number is
635
22 rounds to
20