Test: Operations with decimals - Year 7 MCQ

To determine the smallest number, compare the whole number parts first:

• 47.8 and 48.7 have whole parts 47 and 48.
• 40.7 has a whole part of 40.
• 4.078 has a whole part of 4, which is the smallest.

Thus, D (4.078) is correctly identified as the smallest number.

Compare the whole number parts:

• 96.7 has a whole part of 96.
• 9.67 and 9.76 have a whole part of 9.
• 97.6 has a whole part of 97, which is the largest.

Thus, C (97.6) is correctly identified as the largest number.

Any number above 5.47 could be right so the only possible answer given is 5.74.

The digit 5 is in the second position to the right of the decimal point, which is the hundredths place.

It helps to give the numbers the same number of decimal places by adding zeros, e.g. 2.50 and 2.80.

Multiply the numbers ignoring the decimal points (45 × 12 = 540), then place the decimal point to get 5.4.

The numbers in order from smallest to largest are 3.1, 3.14, 3.4, 3.41. The second largest is 3.4.

Convert 5.6 ÷ 0.8 to 56 ÷ 8 by multiplying both by 10. Then, 56 ÷ 8 = 7. The quotient is 7.0, or 7.

Multiply the numbers ignoring the decimal points (23 × 4 = 92), then place the decimal point to get 0.92.