subtraction without regrouping
What is 35-20?
15
What is 73-27?
46
What is 22+24?
46
What is 72+18?
Which is greater? 104 or 140?
140
What is 76-45?
31
What is 54-28?
26
89
What is 44+37?
81
18
What is 98-34?
64
What is 77-39?
38
What is 62+26?
88
What is 28+29?
57
How many tens are in the number 459?
5 tens
What is 66-23?
43
What is 32-19?
13
What is 33+15?
48
What is 19+33?
52
What is 4 tens the same as?
40
What is 89-72?
17
What is 41-18?
23
What is 50+15?
65
What is 48+34?
82
Which number is in the ones place in the number 561?
1