Subtract or Add
Mental Maths
1 + 2 + 3 + 4 + 5 =
15
15, 17, 19, __?
21
Mental Maths
12 + 32
44
What is 1000 cents in dollars?
$10
What is the only even prime number?
2
Mental Maths
2 + 4 + 6 + 8 + 10 =
30
1, 4, 9, __ ?
16
Mental Maths
Find the sum of 81 divided by 9 and 45 divided by 5.
18
I have $5.00. I spend $1.75. How much change do I get?
$3.25
What maths holiday is celebrated each year on 14th March?
Mental Maths
72 - 37 =
35
1, 2, 4, 7, __?
11
Mental Maths
What is the smallest positive number to have 4 factors?
6
Which country was the first to create and use paper money?
China
How many sides does a dodecagon have?
12
Mental Maths
600 - 31 =
569
41, 35, 29, __?
23
Mental Maths
John is married and has 2 children. He also has three sisters who are also all married and they each have 2 children. They all attend John's birthday party. How many people will be at the party?
16
How many different New Zealand bank notes are there?
5
An improper fraction is always greater than what number?
1 + 2 - 3 + 4 - 5 + 6 - 7 + 8 - 9 + 10 =
7
0, 3, 8, 15, __?
24
Mental Maths
1056 + 49
1105
What was the first thing bought with bitcoin?
Two Papa John's pizzas
What is the only number that has the same number of letters as its meaning?
4 (four has 4 letters)