6B Math Olympics test (short version)

Front

What is the process to solve for the unknown in the equation: 4,211.01 + 22.261 - ? = 2,645.759?

Back

To find the unknown, rearrange the equation: ? = 4,211.01 + 22.261 - 2,645.759. Calculate the result to find the value.

Front

What is the reciprocal of a fraction?

Back

Front

If a factory has 40 workers and 7/10 of them are men, how do you find the number of women?

Back

Calculate the number of men: 40 * (7/10) = 28. Then subtract from total workers: 40 - 28 = 12 women.

Front

How do you calculate a fraction of a number?

Back

Front

How do you convert grams to kilograms?

Back

To convert grams to kilograms, divide the number of grams by 1000.

Front

What is the total mass of 10 packets of rice (2.5kg each) and 4 packets of sweets (250g each)?

Back

Total mass = (10 * 2.5kg) + (4 * 0.25kg) = 25kg + 1kg = 26kg.

Front

What is the definition of a reciprocal?

Back

A reciprocal is the number that, when multiplied by the original number, gives a product of 1.

Front

How do you solve for an unknown in a subtraction equation?

Back

Rearrange the equation to isolate the unknown on one side.

Front

What is the formula to find a fraction of a total?

Back

The formula is: Total * Fraction = Part.

Front

What does it mean to find the total mass?

Back

Finding the total mass involves adding the weights of all individual items together.