Rounding rap-find the place value and circle that digit move to the right and underline it 0-4 circle stays the same 5-9 adding one is the game.15=20
Roman numerals-I=1,V=5,X=10,L=50,C=10,D=500,M=1000
Mental math-500+300=? 10X10=?
Column method 500
300
800
So what u do is 0+0 then go to the tens column which is still 0 then go to the hundreds column and add it together and you will get your answer you do the same thing with column subtraction.
Times table-nine times tables 9,18,27,36,45,54,63,72,81,108
9×7=63 TIP:use your fingers as you go along.
Time:12:30=12Oclock in the morning 24:30=12Oclock at night
LCM(least common multiples)of fractions-3+4 so what you do is
You have to get the same Denominator 4 12 which is 12 so 4×3 is twelve so now you times that by the numerator and that 6 so 6+4 is 10 so it’s ten over 12
By chi-chi and harmony.