Evaluate:
(−8)+(15)−(−9)
Simplify:
6a+7−4a−2
2a + 5
What is the sample size of choosing a letter from the alphabet?
26
What is the button that should be pressed to convert fractions to decimals and vice versa?
What is 3.285 rounded to the nearest 2 decimal places.
3.29
Expand:
−2(3g−5)
−6g+10
From the letters of the word FREQUENCY, one letter is selected at random. What is the
probability that the letter is a VOWEL?
3/9 -> 1/3
Find:
98% of 400m
392m
The temperature at 6 AM was −5°C. By noon, the temperature rose by 12°C, then dropped by 7°C in the evening. What was the final temperature at the end of the day?
0°C
the product of 7 and a number, increased by 12
7n + 12
From a normal pack of 52 playing cards, one card is selected at random.
What is the probability of the card being either a red card or a king?
7/13
convert 5/8 as a percentage.
62.5%
Evaluate:
−14+−26−−7+32−−18−25+−9
−17
Given that a=2, b=-3, c=5.
2b−4a+3c
1
A bag contains 6 red marbles and 2 green marbles. If one marble is drawn at random, what is the probability (fraction) that I will choose a red marble?
3/4
Find the sum of:
2/5 + 3/7
59/60
A submarine is cruising at a depth of -45 metres. It ascends 17 metres, then dives down 30 metres, and finally ascends another 26 metres. At what depth is the submarine now?
32 metres below sea level (-32m)
Write an algebraic expression for the perimeter of the following shape.
6w + 2
A coin is flipped 100 times, resulting in 42 heads and 58 tails.
What is the experimental probability for getting heads?
50/100 -> 1/2
At Sunshine School there are 640 primary school students and 860 secondary students. 70% of primary school students and 45% of secondary students go to the beach. The rest stayed at home.
Determine the overall percentage of students that went to the beach?
835 students out of 1500 students.
55.67%