Grade 7 Maths Decimals Quiz (Part A)

0.06 = ?

• None of these

Answer explanation

0.06 is equivalent to \frac{6}{100} which simplifies to \frac{3}{50}, so the correct choice is \frac{3}{50}.

1.04 = ?

• None of these

Answer explanation

1.04 is equivalent to 1 + 0.04, which is 1 + 1/25. Therefore, 1.04 = 1\ \frac{1}{25}.

• 2.8

• 2.08

• 2.008

• None of these

Answer explanation

To convert the mixed number to a decimal, multiply the whole number by the denominator and add the numerator. So, 2 * 25 + 2 = 52. Then, divide by 25 to get 2.08, which is the correct answer choice.

6 cm = ?

• 0.006 km

• 0.0006 km

• 0.00006 km

• None of these

Answer explanation

6 cm is equal to 0.00006 km because to convert centimeters to kilometers, you need to divide by 100, so 6 cm divided by 100 equals 0.06 meters, which is then converted to kilometers by dividing by 1000.

70 g = ?

• 0.7 kg

• 0.07 kg

• 0.007 kg

• None of these

Answer explanation

To convert grams to kilograms, divide by 1000. Therefore, 70 g = 0.07 kg. The correct answer is 0.07 kg.

5 kg 6 g = ?

• 5.0006 kg

• 5.06 kg

• 5.006 kg

• 5.6 kg

Answer explanation

To convert grams to kilograms, divide by 1000. Therefore, 5 kg 6 g = 5 + 6/1000 = 5.006 kg. The correct answer is 5.006 kg.

2 km 5 m = ?

• 2.5 km

• 2.05 km

• 2.005 km

• 2.0005 km

Answer explanation

To convert 2 km to meters, multiply by 1000 (1 km = 1000 m). Then add 5 meters. So, 2 km 5 m = 2000 m + 5 m = 2005 m = 2.005 km.

(1.007 - 0.7) = ?

• 1

• 0.37

• 0.307

• none of these

Answer explanation

Subtracting 0.7 from 1.007 gives 0.307. Therefore, the correct answer is 0.307.

What should be subtracted from 0.1 to get 0.03?

• 0.7

• 0.07

• 0.007

• none of these

Answer explanation

To get from 0.1 to 0.03, subtract 0.07 (0.1 - 0.07 = 0.03). Therefore, the correct choice is 0.07.

What should be added to 3.07 to get 3.5?

• .57

• .34

• .43

• .02

Answer explanation

To get from 3.07 to 3.5, you need to add .43. This is the correct choice as .43 + 3.07 = 3.5.