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$Fill in the missing fractions.(a) 7 / 10 – ▯ = 3 / 10(b) ▯ – 3 / 21 = 5 / 21(c) ▯ – 3 / 6 = 3 / 6(d$

The enrolment in a school for six consecutive years was as follows:1555, 1670, 1750, 2013, 2540, 282

R Learn Maths

R Learn Maths

The enrolment in a school for six consecutive years was as follows:1555, 1670, 1750, 2013, 2540, 282

The marks (out of 100) obtained by a group of students in a science test are 85, 76,90, 85, 39, 48,

Find the mean to determine A’s average number of points scored per game.(ii) To find the mean number

A cricketer scores the following runs in eight innings:58, 76, 40, 35, 46, 45, 0, 100. Find the mean

Find the mean of the first five whole numbers.

Organise the following marks in a class assessment in a tabular form.4, 6, 7, 5, 3, 5, 4, 5, 2, 6, 2

A vehicle covers a distance of 43.2 km in 2.4 litres of petrol. How much distance will it cover in o

provide the number in the box [ ], such that (2/3) × [ ] = (10/30)The simplest form of the number ob

A car runs 16 km using 1 litre of petrol. How much distance will it cover using 2 ¾ litres of petrol

Lipika reads a book for 1 ¾ hours every day. She reads the entire book in 6 days. How many hours in

Saili plants 4 saplings, in a row, in her garden. The distance between two adjacent saplings is ¾ m.

Vidya and Pratap went for a picnic. Their mother gave them a water bottle that contained 5 liters wa

In a class test, (+ 3) marks are given for every correct answer and (–2) marks are given for every i

An elevator descends into a mine shaft at the rate of 6 m/min. If the descent starts from 10 m above

The temperature at 12 noon was 10oC above zero. If it decreases at the rate of 2oC per hour until mi

Write five pairs of integers (a, b) such that a ÷ b = –3. One such pair is (6, –2) because 6 ÷ (–2)

[13 + (– 12)] + (…………) = 13 + [(–12) + (–7)]

1. Find each of the following products:(a) 3 × (–1)

find each of the following products:3*(-1) b) (-1) * 225 c) (-21) * (-30) d) (-316) * (-1)

(iv) [13 + (– 12)] + (…………) = 13 + [(–12) + (–7)]

(iii) 17 + ………… = 0

(ii) –53 + ………… = –53

Fill in the blanks to make the following statements true.(i) (–5) + (– 8) = (– 8) + (…………)

In a quiz, team A scored – 40, 10, 0 and team B scored 10, 0, – 40 in three successive rounds. Which

write a negative integer and a positive integer whose difference is -3

write a negative integer and a positive integer whose sum is -5

write a pair of negative integers whose difference gives 8

Write True (T) or False ( F ) against each of the following statements : (c) 12:18 :: 28:12

Cost of 5 kg of wheat is ₹ 91.50.(a) What will be the cost of 8 kg of wheat?(b) What quantity of whe

Write True (T) or False ( F ) against each of the following statements : (b) 21:6 :: 35:10

Write down a pair of integers whose: (c) sum is 0

If it has rained 276 mm in the last 3 days, how many cm of rain will fall in one full week (7 days)?

Write True (T) or False ( F ) against each of the following statements :(a) 16:24 :: 20:30

1. Write down a pair of integers whose: (b) the difference is – 10

1. Write down a pair of integers whose: (a) sum is -7

Ekta earns ₹ 3000 in 10 days. How much will she earn in 30 days?

Determine if the following are in proportion.(a) 15, 45, 40, 120(b) 33, 121, 9, 96(c) 24, 28, 36, 48

Use the sign of or = in the box to make the statements true 39 + (-24) – (15) [ ] 36 + (-52) – (- 36

Use the sign of , or = in the box to make the statements true (c) 23 – 41 + 11 [ ] 23 – 41 – 11

Are the following statements true? (b) 7.5 litres: 15 litres = 5 kg : 10 kg

Determine if the following are in proportion.(a) 15, 45, 40, 120(b) 33, 121, 9, 96(c) 24, 28, 36, 48

Use the sign of , or = in the box to make the statements true (-3) + 7 – (19) [ ] 15 – 8 + (-9)

Use the sign of , or = in the box to make the statements true.(a) (-8) + (-4) [ ] (-8) – (-4)

Are the following statements true?(a) 40 persons: 200 persons = ₹ 15 : ₹ 75

Present age of the father is 42 years, and that of his son is 14 years. Find the ratio of(a) Present

Use the sign of , or = in the box to make the statements true. (a) (-8) + (-4) [ ] (-8) – (-4)

Verify a – (– b) = a + b for the following values of a and b.(iv) a = 28, b = 11

Write True (T) or False ( F ) against each of the following statements : (f) 0.9:0.36 :: 10:4

Mother wants to divide ₹ 36 between her daughters Shreya and Bhoomika in the ratio of their ages. If

Verify a – (– b) = a + b for the following values of a and b. (iii) a = 75, b = 84

Verify a – (– b) = a + b for the following values of a and b.(ii) a = 118, b = 125

Write True (T) or False ( F ) against each of the following statements : (e) 5.2:3.9 :: 3:4

Divide 20 pens between Sheela and Sangeeta in a ratio of 3:2.

Verify a – (– b) = a + b for the following values of a and b.(i) a = 21, b = 18

In a magic square, each row, column and diagonal have the same sum. Check which of the following is

Write True (T) or False ( F ) against each of the following statements : (d) 8:9 :: 24:27

Consider the statement: The ratio of breadth and length of a hall is 2:5. Complete the following tab

Rita goes 20 km towards the east from point A to point B. From B, she moves 30 km towards the west a

Mohan deposits ₹ 2,000 in his bank account and withdraws ₹ 1,642 from it the next day. If the withd

A plane is flying at the height of 5000 m above sea level. At a particular point, it is exactly abov

At Srinagar temperature was – 5°C on Monday, and then it dropped by 2°C on Tuesday. What was the tem

In a quiz, positive marks are given for correct answers and negative marks are givenfor incorrect an

Can we say the temperature of Srinagar and Shimla, taken together, is less than thetemperature in Sh

What is the temperature difference between Lahulspiti and Srinagar?

What is the temperature difference between the hottest and the coldest places among the above?

Observe this number line and write the temperature of the places marked on it.

Anish made 42 runs in 6 overs, and Anup made 63 runs in 7 overs. Who made more runs per over?

Raju purchases 10 pens for ₹ 150, and Manish buys 7 pens for ₹ 84. Can you say who got the pens chea

A truck requires 108 litres of diesel to cover a distance of 594 km. How much diesel will be require

The weight of 72 books is 9 kg. What is the weight of 40 such books?

Cost of 4 dozen bananas is ₹ 180. How many bananas can be purchased for ₹ 90?

Shaina pays ₹ 15000 as rent for 3 months. How much does she have to pay for a whole year if the rent

The temperature dropped 150 C in the last 30 days. If the rate of temperature drop remains the same,

If the cost of 7 m of cloth is ₹ 1470, find the cost of 5 m of cloth.

Determine if the following ratios form a proportion. Also, writ(d) 200 mL : 2.5 litre and ₹ 4 : ₹ 50

Determine if the following ratios form a proportion. Also, write the m 2 kg : 80 kg and 25 g : 625 g

Determine if the following ratios form a proportion. Also, write the middle terms and extreme

find each of the following products:3(-1) b) (-1) 225 c) (-21) * (-30) d) (-316) * (-1)