Divisibility Rules
Mind Math
10 second math
Algebra
100

what number has this rule: add all digits of the number and check to see if it is a multiple, if so the whole number is divisible

what is 3 and 9

100

12*12

what is 144

100

90+36

what is 126

100

what is the pythagorous theorum and what is it used for

what is an equation called a^2 + b ^2 = c ^2  that is used to find one side of a right triangle

200

what is 24 divisible by

what is 1, 2, 3, 4, 6, 8, 12, and 24

200

17*17

what is 289

200

65 + 55

what is 120

200

solve for x.   2x+5=15  

what is 5

300

what number has this rule: the last 3 digits of the number are a multiple so that whole number is divisible

what is 8

300

14*19

what is 266

300

125 +289

what is 414

300

A right triangle has one leg that is 9 units long and the hypotenuse is 15 units long. What is the length of the other leg?

how much is 12 units

400

what are the factors of 126 

what is 1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63 and 126 

400

16*45

what  is 720

400

23+25+19

67

400

solve for x    3(x+4)=2(2x−5)+7

what is 15

500

what numbers from 1 to 10 is 4335668799 divisible with?

what is 3 and 11

500

34*93

what is 3162

500

67+15+245+0!

(hint factorials are n! = n * n-1 * ... * 1)

what is 328

500

simplify if k is equal to 43. -10x(35k-6732x)*34y(63x+3652k)

−322265100(x^2)y−79731756000xy+144420864240(x^3)y+356573252064640(x^2)y