Decimals Test

Result

Decimals Test - 8

Score
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Weekly Quiz Competition

Question 1
1 / -0

Hari says that sum of two numbers is 43.060. If one of them is 31.66, then find the other number.

A
15

B
13.5

C
12

D
11.4

Solution

Let the other number be x.
According to question,
31.66 + x = 43.060
x = 43.060 – 31.66
= 11.4
Question 2
1 / -0

Joy is adding 22.680 + 1.20 + 55 and he wants to round-off the answer to the nearest tenths. What will be the number?

A
78

B
78.8

C
78.9

D
80

Solution

22.680 + 1.20 + 55 = 78.88
78.88 rounded-off to the nearest tenths = 78.9
Question 3
1 / -0

Find the value of 4 + (9.01 + 8) + (9.001 + 6) + (9.0001 + 9).

A
50.012

B
54.0111

C
55.1436

D
56.0145

Solution

4 + (9.01 + 8) + (9.001 + 6) + (9.0001 + 9)
= 4 + (17.01) + (15.001) + (18.0001)
= 4 + (50.0111)
= 54.0111