Chapter 12 — Practice 1
18 original mixed questions
Practice earlier ideas together. Check answers only after you have completed an attempt.
Write 5/10 as a decimal and explain its tenths digit.
Show answer and reasoning
5 equal tenths of the same whole are written 0.5.
On a number line from 4 to 5 divided into ten equal intervals, what decimal is at the 8th tick after 4?
Show answer and reasoning
Each interval is 0.1, so add 8 tenths to 4 to get 4.8.
Write 28/100 as a two-decimal-place number.
Show answer and reasoning
28 hundredths are 0.28.
Rename 0.5 as hundredths and write the equivalent decimal to two places.
Show answer and reasoning
Every tenth is ten hundredths; multiply the count by ten.
Write 0.67 as a fraction in simplest form.
Show answer and reasoning
0.67 = 67/100. Reduce by the common factor 1 to 67/100.
Write 1/20 as a decimal.
Show answer and reasoning
Rename 1/20 in tenths or hundredths (or divide numerator by denominator) to get 0.05.
Insert <, > or =: 0.12 ___ 0.27.
Show answer and reasoning
Compare 12 hundredths and 27 hundredths; 0.12 is less relative to 0.27.
Round 8.42 to the nearest tenth.
Show answer and reasoning
Use the two neighboring nearest tenth benchmarks, identify their midpoint, and round the original number 8.42 directly.
Write 3/10 as a decimal and explain its tenths digit.
Show answer and reasoning
3 equal tenths of the same whole are written 0.3.
On a number line from 4 to 5 divided into ten equal intervals, what decimal is at the 7th tick after 4?
Show answer and reasoning
Each interval is 0.1, so add 7 tenths to 4 to get 4.7.
Write 69/100 as a two-decimal-place number.
Show answer and reasoning
69 hundredths are 0.69.
Rename 0.3 as hundredths and write the equivalent decimal to two places.
Show answer and reasoning
Every tenth is ten hundredths; multiply the count by ten.
Write 0.45 as a fraction in simplest form.
Show answer and reasoning
0.45 = 45/100. Reduce by the common factor 5 to 9/20.
Write 2/4 as a decimal.
Show answer and reasoning
Rename 2/4 in tenths or hundredths (or divide numerator by denominator) to get 0.5.
Insert <, > or =: 0.50 ___ 0.68.
Show answer and reasoning
Compare 50 hundredths and 68 hundredths; 0.50 is less relative to 0.68.
Round 1.80 to the nearest whole number.
Show answer and reasoning
Use the two neighboring nearest whole number benchmarks, identify their midpoint, and round the original number 1.80 directly.
Write 2/10 as a decimal and explain its tenths digit.
Show answer and reasoning
2 equal tenths of the same whole are written 0.2.
On a number line from 2 to 3 divided into ten equal intervals, what decimal is at the 2nd tick after 2?
Show answer and reasoning
Each interval is 0.1, so add 2 tenths to 2 to get 2.2.