order of chaos
(8 + 2) x 5
Hopefully you added first! It’s 50! Even though it’s addition, there are parentheses! 8 + 2 =10 and 10 x 5 =50
What is the simplest form of 8/12
I’ve never heard of 2/3! The greatest common factor of 12 and 8 is 4. 4, 8, 12. Now we are at 12. If there are three numbers that can be used to make 12 in that times table the denominator has to be 3 because of the total parts. Our numerator is 8 which is in the 2nd part of the times table so the answer is 2/3.
What do you call an angle that is exactly 90°
A right angle! Am I right? Any angle exactly 90° is called a right angle.
Is 15 a prime or composite number?
It’s composite because it has 1 x 15, 15 x 1, 3 x 5, 5, 3. That’s 4 equations and 4 is bigger than 2.
3, 7, 11, 15…
19 is correct because the pattern is to add 4.
10 + 5 x 2
It’s not 30 but it’s 20! In PEMDAS we always do multiplication first because it’s the first in this equation that is in the word. 5 x 2 is 10 and that leaves us with the equation 10 + 10 which is 20.
Which is greater: 3/4 or 5/8
3/4 is greater! We can’t compare with different denominators so we have to turn one into the other, 3/4 turned into eights is basically each digit doubled. It would be 6/8. Now using same denominators we just need to find the greater numerator. 6 is greater than 5 so the answer must be that 3/4 is bigger. Who knew finding equivalent fractions could be so useful?
How many lines of symmetry does a square have?
What’s 4? You can imagine a folded line across it and you will find a total of 4 lines of perfectly folded.
List all the factors of 12.
1,2,3,4,6,12!
Solve for x: x= x/4 = 12
48 is correct because you can multiply 12 x 4 to find your answer instead.
50 - (10 + 20) + 5
What’s 20 + 5? Oh right… 25! Add the parentheses first which is 10 + 20 and that is 30. Make sure do it it left to right so the equation is now 50 - 30 + 5. 50 - 30 is 20 and 20 + 5 is 25!
Solve
1 2/5 + 2 1/5
and give the answer as a mixed number
3 3/5! Starting with the fractions, 2/5 + 1/5=3/5 or to make it simpler 2 + 1 =3 and add the fifth symbol. Now add the whole numbers, 1 + 2 =3. Now put them together. 3 3/5.
An angle measure 135° is it Acute, obtuse, or right?
It’s obtuse because its angles are greater than 90°!
A red light blinks every 4 minutes and a yellow light blinks every ten minutes. In how many minutes will both colors blinks at the same time if they just blinked together? (Hint: find the least common multiple)
Tough answer, hmmmm… oh I got it! It’s 20! In 20 minutes because 10 x 1 =10 and nothing x4 = 10. Then it’s 10 x 2 and that equals 20. Something times four = 20. 4, 8, 12, 16 , 20. 20 is the 5th number. If that is the least for 10 and is possible for four, the answer of the least common multiple would be 20.
1, 3, 9, 27…
What’s 27 x 3… 81? 81 is correct because the pattern is to multiply by 3. you can use the distributive property and multiply 3 x 20 and 3 x 7 then add them.
20 - 2 x 5 + 4
Have you heard of the number 14? Using PEMDAS 2 x 5 is 10 and remember to go left to right. This means 20 - 10 and that is 10. Now our last number is 4 so 10 + 4=14.
Subtract 5 - 2 1/3.
The answer is 2 2/3. We can’t take away 1/3 from 0/3 so we can turn the 5 wholes into 4 3/3 because it’s equivalent to 5 and we can subtract from it. 3/3 - 1/3= 2/3. Now we take the 4 wholes and subtract it by 2. 4 - 2 = 2. now put it together sms you’ll get 2 2/3
Parallel! I knew that! Parallel lines never touch.
What is the only even prime number?
2! Every even number is prime because it gets multiplied by 2 but 2 times 2 would be 4! That means 2 is prime.
3 x n + 12 = 42. What is n?
N = 10 because 3 x 10 =30 and 30 + 12 = 42. You can subtract 42 - 12 and get 30. Then you just need to find out what times 3 = 30.
50−2×[3+(23÷2)
Whats 36? Using PEMDAS start with the parenthesis. 2 cubed is 2 x 2 x 2. 2x 2 is 4 and 4 x 2 is 8. Now the 2 cubed turns into 8. 8/2 is 4. Now go into the brackets. 3 + 4 is 7. Now the next one is multiplication as is shown in pemdas. 2 x 7 is 14 and now we go back to the subtraction. 50 - 14 =36. Therefore the answer is 36
A pizza has 12 slices. Mark eats 1/4 and Sarah eats 1/3. How many slices are left?
hmmmmm… oh wait, it’s 5! A fourth of 12 is like dividing it by 4. The first number would be 4 because 4,8,12. So 12 - 4 =8. Now we have to do the same thing but with 3. 12/3 is 3,6,9,12. The first number is 3 and the numerator for 1/3 is 1. Now we take our 8 from earlier and subtract it by 3. 8 - 3 = 5.
If one side of a triangle is 45 degrees and the other is 45 degrees what is the degree of the 3rd side?
It’s 90 because we know that a triangle has 180° and we know the 2 sides. To find the third side we have to add the first 2. 45 + 45 =90. Now we have to subtract the total (180) by our new number (90). We would get the answer 90.
I am a multiple of 9 between 50 and 70. If you add up my digits you will get 9. What am I?
54 and 63 sound right I mean are definitely right! 54 and 63 is greater than 50 and less than 60 while still being part of the 9 times table. 9 x 7 =63 and 6 x 9 =54. 54 has the digits 5 and 4 added up would become nine. 63 has the digits 6 + 3 which would = 9.
1, 4, 9, 16, 25, what’s the 7th number in the pattern?
If you said 36 you are wrong. It’s 49. The pattern is to multiply by itself also knows as squared or to the power of 2. 1x 1 =1 1 and it’s the first number in the pattern. 2 x 2 =4 4 and it’s the 2nd number in the pattern. 7 x 7 =49. You can also do the keep adding 2 from 3. 1 + 3 = 4. 4 + 5 =9. 9 + 7 =16.