Mental Math
9+10=?
19
18+6=?
24
20-8=?
12
How many tens are in 40?
4
What number is 10 more than 34?
44
25+5=?
30
23+14=?
37
31-9=?
22
What number has 5 tens and 2 ones?
52
What number is 10 less than 62?
52
40-20=?
20
35+27=?
62
50-17=?
33
Which number is greater: 67 or 76?
76
If you have 28 candies and get 7 more, how many do you have?
35
15+15=?
30
46+27=?
73
63-25=?
38
What is the value of the 6 in 64?
60
There are 45 birds. 19 fly away. How many remain?
26
50-25=?
25
58+36=?
94
80-46=?
34
Write the number with 8 tens and 7 ones.
87
You have 36 marbles.
You find 14 more, then lose 10.
How many do you have now?
40