Unit-3 Test- Decimals, percentages and rounding- Cambridge board

Multiple Choice

10² x 4.78 =

• 4.78

• 47.8

• 478

• 4,780

Multiple Select

1. The length of a fence is 137 metres, correct to the nearest metre. Choose the upper and lower bound for the length of the fence.

• 136.5 m

• 141m

• 137.5m

• 132m

Multiple Choice

$$7\div10$$  

• 0.7

• 70

• 0.007

• 0

Multiple Choice

$$800\div10$$  

• 8,000

• 80

• 8

• 0.8

Multiple Choice

$$0.7\div100$$  

• 0.007

• 0.7

• 0.07

• 7

Multiple Choice

$$3\times10^2$$  

• 30

• 0.03

• 300

• 0.3

Multiple Choice

$$9\div10^3$$  

• 9,000

• 0.09

• 0.009

• 9

Multiple Choice

$$10.35\ \times10^2$$  

• 1,035

• 103.5

• 0.1035

• 1.035

Multiple Choice

10^{1 x} 17.04 =

• 1,704

• 170.4

• 17,040

• 1.704

Multiple Choice

Is this statement true?
48.6 ÷ 10 = 0.486

• True
• False

Multiple Choice

$$0.3\times6.1$$  

• $$18.3$$  

• $$1.83$$  

• $$19.3$$  

• $$1.93$$  

Multiple Choice

I have 4.5 pounds of candy. I want to equally distribute the candy between 9 jars. How much candy will be in each jar?

• 5 pounds

• .5 pounds

• 50 pounds

• .05 pounds

Multiple Choice

Divide: $$7.2 \div 0.9$$

• $$8$$

• $$80$$

• $$0.8$$

• $$0.08$$

Multiple Choice

56.56 divided by 100

• 56.56
• .5656
• 565.6
• 5656

Multiple Choice

Another way of writing 1.05 x 1.05 x 1.05

• 3 x 1.05

• 1.05³

Multiple Choice

What calculation would increase £12,000 by 0.8%?

• 12000 x 1.08

• 12000 x 0.008

• 12000 x 0.982

• 12000 x 1.008

Multiple Choice

What is the decimal multiplier for a 13% decrease?

• 0.87

• 0.13

• 1.13

Multiple Choice

James Bond’s Aston Martin, originally worth £150,000, depreciates by 15% each year. What is its value after 5 years?​

• £66,556

• £67,556

• £68,556

Multiple Choice

the weight of a potatoes is 25 kg correct to the nearest kG /write down the smallest possible weight of the of bag /and also in largest

• smallest24.5/largest25.5

• smallest23.6/largest29.5

• smallest24.5/largest25.5kg

• kjjnejneqovmqeo

Multiple Choice

What is the upper bound and lower bound of 390 grams, measured to the nearest 10 grams?

• 395 and 385

• 390.5 and 389.5

• 400 and 300

• 400 and 350

Multiple Choice

Work out the upper bound and lower bound for 32 cm, measured to the nearest cm

• 32.5 and 31.5

• 31.5 and 32.5

• 35 and 30

• 33 and 31

Multiple Choice

The length and width of a field have been measured as 78m and 35m to the nearest metre. Find the greatest possible amount of fencing needed to surround the field

• 27

• 228

• 226.5

• 228.5