Two Truths and a Lie - Mathematics (Easy Version)

Can you identify the lie among the three statements concerning elementary math in each of these questions?

This quiz is not for math nerds. If you find the questions too easy, try this instead.

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Last updated: April 2, 2022

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First submitted	April 2, 2022
Times taken	58
Average score	80.0%
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1. Which statement is false?

For all values of a and b: a + b = b + a ✓

1 meter equals 100 centimeters ✓

24 + 37 = 51 ✓

24 + 37 = 61 - don't forget to carry the 1

2. Which statement is false?

1034 is greater than 1043 ✓

10 ÷ 3 = 3 ... 1 ✓

3 + 5 × 4 = 3 + 20 = 23 ✓

1034 is less than 1043

3. Which statement is false?

1 centimeter equals 10 millimeters ✓

The number 15 contains 1 ten and 5 ones ✓

Rounding 37.5 to the nearest integer gives 37 ✓

It actually yields 38 because if the most significant digit being dropped is 5 or higher then you must round up

4. Which statement is false?

9876 is greater than 6789 ✓

1 kilometer equals 1000 meters, so 1 square kilometer equals 1000 square meters ✓

The number 1,234,567 is read as: one million, two hundred and thirty-four thousand, five hundred and sixty-seven ✓

1 square kilometer equals 1,000,000 square meters because everything is squared

5. Which statement is false?

Area of a circle = 2πr, where r is the radius ✓

3 × 50% = 3 × 50 ÷ 100 = 150 ÷ 100 = 1.5 ✓

Area of a triangle = ½ah, where a is the base and h is the height ✓

Area of a circle = πr²

6. Which statement is false?

A cube has six sides ✓

The expression 25 ÷ 4 + 1 does not equal any numerical value because 25 is not divisible by 4 ✓

An obtuse angle is one that is greater than 90° but less than 180° ✓

If m is not "divisible" by n, then the expression m ÷ n cannot yield an integer, but n can still divide m and give a fraction/decimal

7. Which statement is false?

0.01 + 0.002 = 0.012 ✓

4 × 7 = 28 ✓

The following things are the same: ¼, 1 ∶ 4, 1 ÷ 4 ✓

¼ is a fraction - it's a number; 1 ∶ 4 is a ratio - it describes a relationship; 1 ÷ 4 is an expression, which is not a number but can yield a numerical result

8. Which statement is false?

The greatest common divisor (GCD) of 8 and 12 is 4 ✓

24 × 12 = 24 × 1 + 24 × 2 = 24 + 48 = 72 ✓

The largest integer you can make with the digits 0, 1, 2, and 3 is 3210 ✓

24 × 12 = 24 × 10 + 24 × 2 = 240 + 48 = 288

9. Which statement is false?

30 ÷ (2 × 3) = 30 ÷ 2 × 3 = 15 × 3 = 45 ✓

30% of 10 is 3 ✓

1 ÷ 7 = 0.143 to 3 significant figures ✓

30 ÷ (2 × 3) = 30 ÷ 2 ÷ 3 = 15 ÷ 3 = 5

10. Which statement is false?

You can divide by zero ✓