Tutorials
Mathinic Tutorials:
More Tutorials:
- Lesson 1 - Ten's Complement or Subtraction from a Base (Power of ten)
- Lesson 2 - Multiplying by 11
- Lesson 3 - By one more than the one before/ Squaring numbers ending in 5
- Lesson 4 - By one more than the one before/ complementary numbers
- Lesson 5 - Multiplying numbers whose initial digits are complementary
- Lesson 6 - Multiplying numbers ending in 5
- Lesson 7 - Using averages.
- Lesson 8 - Multiplication by 9s - as many or more 9s as the length of the multiplicand
- Lesson 9 - Multiplying by 9s - when the number of 9s is less than the multiplicand's
- Lesson 10 - Squaring Numbers Near a Base
- Lesson 11 - Squaring Numbers Near 50
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