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?

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Last updated: April 2, 2022

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First submitted	April 2, 2022
Times taken	92
Average score	80.0%
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1. Which statement is false?

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

24 + 37 = 51

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

1 meter equals 100 centimeters

2. Which statement is false?

1034 is less than 1043

10 ÷ 3 = 3 ... 1

1034 is greater than 1043

3 + 5 × 4 = 3 + 20 = 23

3. Which statement is false?

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

The number 15 contains 1 ten and 5 ones

1 centimeter equals 10 millimeters

Rounding 37.5 to the nearest integer gives 37

4. Which statement is false?

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

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

5. Which statement is false?

Area of a circle = πr²

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

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

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

6. Which statement is false?

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

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°

7. Which statement is false?

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

0.01 + 0.002 = 0.012

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

4 × 7 = 28

8. Which statement is false?

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

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

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

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

9. Which statement is false?

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

30% of 10 is 3

1 ÷ 7 = 0.143 to 3 significant figures