Rounding Numbers and Mathematical Practices

The video tutorial by Mr. Water covers the concept of rounding decimals using place value. It begins with an introduction to the topic and proceeds with examples involving the lengths of different frogs, such as the gold frog, little grass frog, and goliath frog. The tutorial emphasizes the importance of understanding place value and mathematical practices in rounding. It also provides general rules for rounding and encourages practice through example problems.

What is the main focus of the lesson on rounding decimals?

• Understanding fractions

• Using place value to round decimals

• Learning multiplication tables

• Solving algebraic equations

When rounding 0.386 to the nearest hundredth, which digit do you look at?

• The digit in the tenths place

• The digit in the thousandths place

• The digit in the ones place

• The digit in the hundredths place

If the digit to the right of the rounding place is 5 or more, what should you do?

• Remove the rounding digit

• Leave the rounding digit unchanged

• Increase the rounding digit by one

• Decrease the rounding digit by one

What is the length of the little grass frog rounded to the nearest hundredth?

• 0.43

• 0.44

• 0.45

• 0.46

How do you round 0.437 to the nearest tenth?

• 0.43

• 0.44

• 0.5

• 0.4

What is the length of the goliath frog rounded to the nearest inch?

• 10 inches

• 13 inches

• 12 inches

• 11 inches

If a number is 11.286, what is it rounded to the nearest whole number?

• 13

• 11

• 12

• 10

What is the rule for rounding when the digit is less than 5?

• Increase the digit

• Decrease the digit

• Let it rest

• Double the digit

Which mathematical practice involves looking for regularity in repeated reasoning?

• Mathematical Practice 8

• Mathematical Practice 7

• Mathematical Practice 6

• Mathematical Practice 5

What is 14.603 rounded to the nearest hundredth?

• 14.60

• 14.62

• 14.61

• 14.59