Mixed Math
Integer +/-
Riddles
Math Vocab.
100

percent increase of 16 to 20.

25%

100

(-33) + 47 =

Answer: 14

100

Jack goes to the supermarket and buys 10 potatoes. Unfortunately, on the way back home, all but 9 get ruined. How many potatoes are left in a good condition?

Answer: 9

100

The number that remains after subtraction

Difference

200

What is 40% of 150

60

200

(-30) - (-82) =

Answer: 52

200

Which number stays the same no matter the number you multiply it with? 

Answer: 0

200
What is the top number in a fraction?

Answer: Numerator

300

A 3D shape with ONE base and triangle faces that meet together to form a point at the top. 

Pyramid

300

42 - (-20) = 

Answer: 62

300

Suzi has 3 mangoes and 2 pears in one hand and 2 mangoes and 4 pears in the other. How many pears and mangoes did Suzi have?

Answer: 5 mangoes and 6 pears

300

An approximate calculation

Answer: an estimate

400

Solve 4+8÷2x3-1=

15

400

(-662) - 491=

Answer: -1,153

400

When I was 6, my sister was half my age. Now, I'm 70. How old is my sister? 

**DOUBLE POINTS**

67 years old

400

Any natural number or its negative, or zero

Answer: Integer

500

32  - 4 + 12(2+2)

53

500

(-7)- (-8)=

Answer 1

500

It is always in front of you but cannot be seen

The future 

500

A number that has no factor but itself and 1

Answer: Prime

600

Solve the equation to find the value of the variable. 

f + 2.6 = 5.8

f = 3.2

600

(987)-(-403) = 

Answer: -584

600

If you multiply 8 with any other number, the number will remain the same: What is the number we are talking about? 


Answer: Zero

600

What is the answer to a division problem called?

Quotient

700

3/5 + 2/7

31/35

700

600 - (-927)= 

Answer: 1,527

700

Riddles to Ponder 

Can you figure out the answers to the riddles? 

I come one in a minute, Twice in a moment, But never in a thousand years

the letter M

700

A quantity obtained by the addition of a group of numbers

Answer: Sum

800

Hadley buys 7 boxes of markers with 8 in each box. Delaney buys 6 boxes of markers with 12 markers in each box. How many markers did Hadley and Delaney buy in all?

7 x 8 = 56 

6 x 12 = 72 

56 + 72 = 128

800

839+(-425) =

Answer: 414
800

It takes 10 men two months to dig a tunnel. How many days will it take 20 men to dig the same tunnel? 

Answer: 0, the tunnel’s already dug!

800

A number that is combined with another number

Answer: Addend

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