Easy maths: Jacob

Easy maths


1. 10 times tables: I work out  my 10x table by adding a 0 at the end of the number.
For example:
3 x 10 = 3 + a 0 on the end = 30
659 x 10 = 659 + a 0 on the end = 6590


2. 11 times tables: I work out my 11x table by adding the same number at the end if it is in the units. Greater than 10.
For example:
6 x 11 = 6 + the same number at the end = 66
111 x 11 = Greater than 10 = 1221


3. 5 times table: I work out my 5 x tables by halving the even number then adding a 0. If it is an odd number halve it then take out the decimal.
For example:
6 x 5 = Halve the 6 = 3 + a 0 = 30
9 x 5 = Halve the 9 = 4.5 - the decimal = 45


4. 0 Times tables: If it is 0 x something it is always 0.
For example:
0 x 9 = 0
0 x 156 = 0


5. 6 Times tables: 5 x plus.
For example:
6 x 8 = 5 x plus = 48
6 x 359 = 5 x plus = 2154


6. 9 Times tables:
1. 10 x minus the number.
For example:
9 x 3 = 10 x 3 (30) -3 = 27
9 x 578 = 10 x 578 (5780) -578 = 5202
2. Breaking up.
Break up #’s into times tables I know.
For example:
13 x 9 =
10 x 9 = 90
3 x 9 = 27
        = 107
3. Count in 9’s.
For example: 9 , 18 , 27 …......


7. 12 Times Tables: 10 x plus double the number.
For example:
12 x 7 = 10 x plus double the number = 84
12 x 624 = 10 x plus double the number = 7488


8. 11 Times Tables: Greater than 10.
For example:
7 x 11 = Greater than 10 = 77
150 x 11 = Greater than 10 = 1650