Computation/Number patterns
Write four hundred and eighty-two million as a basic numeral.
482 000 000
5/8=25/a
a= 40
If a=3 and b=5
Evaluate
2a + 3b
2x3 + 3x5
6+15
=21
At 5am the temperature was -9 degrees.
At 12pm it was 3 degrees.
What was the rise in temperature?
12 degrees
Rachel scores 13, 15 and 20 in three maths tests.
Owen scores 12, 14 and 9.
And Poppy scores 8, 18, 12.
Which student got the highest mean?
Owen 11.666666
Poppy 12.66666
Write a prime number between 25 and 35.
29 31
Round 56.2471 to 2 decimal places.
56.25
Expand the expression
4(2a + 6) -3
8a + 21
When a number was divided by -4 the answer was -6.
What was the number?
24
In 7 games of soccer, Michael scored the following goals.
3, 2, 1, 3, 0, 4, 3
What is Michael's median score?
0, 1, 2, 3, 3, 3, 4
Median = 3
What is the lowest common multiple of 5 and 6.
30
15 students like soccer, 20 like tennis and 25 like touch football.
What percentage of the students like soccer?
25%
Expand 9(a + 3) + 2(a + 5)
9a + 18 + 2a + 10
11a + 28
Put the following numbers in ascending order
-47, 12, -34, -3, -18
-47, -34, -18, -3, 12
A 15 sided dice is rolled.
List the sample space
and
the probability of rolling a number less than 6.
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
5/15 1/3
Each box has 6 doughnuts. I need at least 80 doughnuts for a party.
What is the minimum number of boxes I would need to order?
14
Helen eats 1/4 of a pizza on one day and 3/9 on the second day.
What fraction of the pizza is remaining?
16/36
A plumber charges a $20 call out fee, plus $14 per hour of work.
If the plumber works 3 hours, how much will they earn?
20 + 14 x 3
$62
Find the missing number.
4 - ? + (-5) = 0
-1
I have a spinner with the numbers 1-20 on it.
What is the probability I spin and get a prime number?
Prime numbers 2, 3, 5, 7, 11, 13, 19
7/20
Fran has 5 dogs. The dogs weigh 30kg, 20kg, 10kg, 15kg and 25kg.
What is the average weight of each dog?
20kg
Robbie, Luke and Sam share $140 in the ratio 4:2:1
How much money does each person receive?
Robbie $80
Luke $40
Sam $20
A tree has n apples on it.
During a storm 15 apples fall off.
Write an expression for the number of apples left on the tree.
n- 15
If a= -3 and b= -5
Calculate
a2 + b2
-3 x -3 + -5 x -5
34
When playing with a spinner with the numbers 1 to 4 on it. The following numbers come up:
1, 4, 4, 2, 3, 2, 1,3
If I spun the spinner 160 times, how many times would I expect to get the number 4?
Probability of getting a 4= 2/8
2/8 of 160 = 40 times