Squaring a 2 digit number ending in 7
1.Choose a 2-digit number ending in 7.
2.The last digit of the answer is always 9:_______9
3.Multiply the first digit by 4 and add 4 (keep the carry):_______X _
4.Multiply the first digit by the next consecutive number and add the carry: the product is the first two digits: XX .
Example:
1.If the number is 47:
2.The last digit of the answer is 9:___________9
3.Multiply the first digit (4) by 4 and add 4 (keep the carry): 4x4 = 16, 16 + 4 = 20; the next digit of the answer is 0 (keep carry 2):________0 9
4.Multiply the first digit (4) by the next number (5) and add the carry (2): 4 x 5 = 20, 20 + 2 = 22 (the first two digits): 22__________
5.So 47 x 47 = 2209.
See the pattern?
1.For 67 x 67
2.The last digit of the answer is 9:___________9
3.Multiply the first digit (6) by 4 and add 4 (keep the carry): 4 x 6 = 24, 24 + 4 = 28; the next digit of the answer is 0 (keep carry 2):________8 9
4.Multiply the first digit (6) by the next number (7) and add the carry (2): 6 x 7 = 42. 42 + 2 = 44 (the first two digits): 4 4 _ _
5.So 67 x 67 = 4489.
Notes
Vedic Maths - Notes
2. Square 2 Digit Number with up down Method
Show Notes
3. Multiplying two 2 digit numbers difference of 4
Show Notes
4. Squaring a 2 digit number ending in 2
Show Notes
5. Squaring a 2 digit number ending in 3
Show Notes
6. Multiplying two 2 digit numbers difference of 6
Show Notes
9. Squaring a 2 digit number beginning with 1
Show Notes
12. Squaring a 2digit number ending in 8
Show Notes
15. Multiply any two digit number with 11
Show Notes
16. Squaring a 2 digit number ending in 5
Show Notes
17. Multiplying two selected 3 digit numbers middle digit 1
Show Notes
19. Likewise you can find out square of a number that is one less than the number whose square is known
Show Notes
20. Multiplying two 2 digit numbers difference of 3
Show Notes
23. Squaring a 2 digit number ending in 4
Show Notes
24. Multiply any two numbers from 11 to 20 in your head Take 15 x 13
Show Notes
25. Multiplying two 2 digit numbers difference of 8
Show Notes
26. find square of a number between 50 and 60
Show Notes
27. Digital Sums For Multiplication By Eleven
Show Notes
28. This little math trick will show you whether a number is divisible by four or not
Show Notes
29. Lets add 1 hr and 35 minutes and 3 hr 55 minutes together
Show Notes
30. The Squaring of Numbers Ending in 5
Show Notes
31. Multiplying two selected 3 digit numbers middle digit 0
Show Notes
35. Multiplying two 2 digit numbers difference of 10
Show Notes
37. Vertically and Crosswise To find 26 Multiplied by 31 in One Line we need to look at a Pattern
Show Notes
40. Squaring a 2 digit number beginning with 9
Show Notes
41. Multiplying two 2 digit numbers difference of 1
Show Notes
44. Simple trick to remember table of 19
Show Notes
45. Convert Fahrenheit to Celsius and vice versa
Show Notes
46. Squaring a 2 digit number ending in 1
Show Notes
47. Multiplying two 2 digit numbers difference of 2
Show Notes
48. Multiplication of two numbers around 100 is even easier than you could ever imagine
Show Notes
49. How to multiply 123 and 321 in one go
Show Notes
50. Squaring a 2 digit number ending in 7
Show Notes
