Number Sense Quiz

What is the result of adding two fractions with consecutive integers, such as 6/7 and 8/9?

• 1

• 47/63

• 48/63

• 49/63

How do you find the arithmetic mean of the numbers 33, 18, and 21?

• Add the numbers and divide by 2

• Add the numbers and divide by 3

• Subtract the smallest from the largest and divide by 3

• Multiply the numbers and divide by 3

Which method is used to multiply two numbers like 34 and 43 in the video?

• Long multiplication

• FOIL method

• Cross multiplication

• Grid method

What is the remainder when 32 - 43 + 54 is divided by 7?

• 3

• 2

• 1

• 0

How is the number 123 in base 7 converted to base 10?

• By multiplying each digit by 7 raised to the power of its position and summing them

• By reversing the digits and converting directly

• By adding each digit and multiplying by 7

• By dividing each digit by 7 and summing them