Mental Math with 11: Addition and Subtraction Tricks
Interactive Video
•
Mathematics
•
2nd - 3rd Grade
•
Practice Problem
•
Hard
Jennifer Brown
FREE Resource
5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the quick method to add 11 to a number like 46?
Add 10 and then add 1
Add 12 and subtract 1
Add 11 directly
Subtract 10 and add 21
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you quickly subtract 11 from a number like 46?
Subtract 10 and then subtract 1
Subtract 12 and add 1
Subtract 11 directly
Add 10 and subtract 21
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If you add 11 stars to a constellation of 34 stars, how many stars are there in total?
44
45
46
47
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
After 11 asteroids crash into a planet from a group of 52, how many asteroids remain?
41
42
40
43
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of adding 11 to 52 using the quick method?
65
64
63
62
Access all questions and much more by creating a free account
Create resources
Host any resource
Get auto-graded reports
Continue with Google
Continue with Email
Continue with Microsoft
or continue with
%20(1).png)
Apple
Others
By signing up, you agree to our Terms of Service & Privacy Policy
Already have an account?
