Powers
Name of the number repeted
Base
Why is 5 a prime number
Because it has only 2 divisors
How can be expresed 5 grades under Zero?
-5
Write The 3 first multiples of 3
3, 6, 9
Clara was paid €28 to deliver 7 piles of publicity. How much would she be paid if she delivers an extra pile?
€32
write as a single power 5^3*5^2=
5^5
Factorise 165
3 * 5*11
Is - 4 smaller or greater than -3 ?
Smaller
True or False?
3 is divisible by 12
False, 3 is a divisor no a multiple
Mark works in a factory that is 18 km from home. How many kms per week does he ride if he works from monday to friday?
180
Exponent In ((5^4)^2)^2
16
180
Do you know the distance to zero of these two numbers?
-5 and 5
5, same distance
Is 210210 divisible by 11?
Yes, oddly digits add up the same as evenly digits
John has €25. His brother Luis has €12 more than John and his sister Lara €8 less than Luis. Do they have enough money to buy a present of €90?
Yes, they will have €1 left
Calculate [(7^6):(7^4)]^0
1
Express 899 as a product of two factors different from 899 and 1
29 *31
Platón was born in -427 and died in -347. How many years did he live?
80
Is 51 the following prime number of 47?
No, it´s divisible by 3
The weight of an empty lorry is 3 950 kg. We put 270 sacs of 65 kg each. How much is the total weight of the lorry?
21 500 kg
Proof (3^2+4^2) is different from 7^2
3^2 = 9 and 4^2 = 16
7^2 = 49
9+16 = 25 different of 49
Which one is a prime number?
101 , 147, 247
101
A lift of Marineda got these movements in a saturday afternoon: -3 +2 -1 +0 -2 +1 -3 +2-1. How many levels did it move at the end of the journey?
26 levels or plants
Is 162 a multiple of 8 ?
The answer can´t be found multiplying 8 by itself
NO, the factorization of 162 =2*3ˆ4 and 8 = 2ˆ3
A square field has a surface area of 900 square metres. How many metres of fence do you need to go around its sides?
120 m