Numbers from Twenty One to Fifty

65 solved questions from Class 1 Mathematics, each with the full working. Tap any question to see the step-by-step solution.

• 1 Express 21 in Tens and Ones. easy MCQ Place Value 21-50
• 2 Express 22 in Tens and Ones. easy MCQ Place Value 21-50
• 3 Express 23 in Tens and Ones. easy MCQ Place Value 21-50
• 4 Express 24 in Tens and Ones. easy MCQ Place Value 21-50
• 5 Express 25 in Tens and Ones. easy MCQ Place Value 21-50
• 6 Express 26 in Tens and Ones. easy MCQ Place Value 21-50
• 7 Express 27 in Tens and Ones. easy MCQ Place Value 21-50
• 8 Express 28 in Tens and Ones. easy MCQ Place Value 21-50
• 9 Express 29 in Tens and Ones. easy MCQ Place Value 21-50
• 10 Express 30 in Tens and Ones. easy MCQ Place Value 21-50
• 11 Express 31 in Tens and Ones. easy MCQ Place Value 21-50
• 12 Express 32 in Tens and Ones. easy MCQ Place Value 21-50
• 13 Express 33 in Tens and Ones. easy MCQ Place Value 21-50
• 14 Express 34 in Tens and Ones. easy MCQ Place Value 21-50
• 15 Express 35 in Tens and Ones. easy MCQ Place Value 21-50
• 16 Express 36 in Tens and Ones. easy MCQ Place Value 21-50
• 17 Express 37 in Tens and Ones. easy MCQ Place Value 21-50
• 18 Express 38 in Tens and Ones. easy MCQ Place Value 21-50
• 19 Express 39 in Tens and Ones. easy MCQ Place Value 21-50
• 20 Express 40 in Tens and Ones. easy MCQ Place Value 21-50
• 21 Express 41 in Tens and Ones. easy MCQ Place Value 21-50
• 22 Express 42 in Tens and Ones. easy MCQ Place Value 21-50
• 23 Express 43 in Tens and Ones. easy MCQ Place Value 21-50
• 24 Express 44 in Tens and Ones. easy MCQ Place Value 21-50
• 25 Express 45 in Tens and Ones. easy MCQ Place Value 21-50
• 26 Express 46 in Tens and Ones. easy MCQ Place Value 21-50
• 27 Express 47 in Tens and Ones. easy MCQ Place Value 21-50
• 28 Express 48 in Tens and Ones. easy MCQ Place Value 21-50
• 29 Express 49 in Tens and Ones. easy MCQ Place Value 21-50
• 30 Express 50 in Tens and Ones. easy MCQ Place Value 21-50
• 31 Express 21 in Tens and Ones. easy MCQ Place Value 21-50
• 32 Express 22 in Tens and Ones. easy MCQ Place Value 21-50
• 33 Express 23 in Tens and Ones. easy MCQ Place Value 21-50
• 34 Express 24 in Tens and Ones. easy MCQ Place Value 21-50
• 35 Express 25 in Tens and Ones. easy MCQ Place Value 21-50
• 36 Express 26 in Tens and Ones. easy MCQ Place Value 21-50
• 37 Express 27 in Tens and Ones. easy MCQ Place Value 21-50
• 38 Express 28 in Tens and Ones. easy MCQ Place Value 21-50
• 39 Express 29 in Tens and Ones. easy MCQ Place Value 21-50
• 40 Express 30 in Tens and Ones. easy MCQ Place Value 21-50
• 41 Solve the expression: 15 + 25 × 2. medium MCQ BODMAS Rule
• 42 Find the area of a rectangle with length 8 cm and breadth 5 cm. medium MCQ Area of Rectangle
• 43 What is the volume of a cube with edge 3 cm? medium MCQ Volume of Cube
• 44 Find the 10th term of AP: 2, 7, 12, ... medium MCQ Arithmetic Progression
• 45 Distance between points (0,0) and (6,8) is: medium MCQ Distance Formula
• 46 Find surface area of a sphere with radius 7 cm (π = 22/7). medium MCQ Surface Area of Sphere
• 47 If perimeter of a circle is equal to that of a square, find ratio of their areas. medium MCQ Areas Related to Circles
• 48 What is the nth term of an AP with first term a and common difference d? medium MCQ Arithmetic Progression
• 49 Coordinates of midpoint of line joining (x₁, y₁) and (x₂, y₂) is: medium MCQ Midpoint Formula
• 50 Find the value of (2⁰ + 3⁰) × 5⁰. medium MCQ Exponent Laws
• 51 What is the domain, range, or fundamental theorem introduced in 'Numbers from Twenty One to Fifty' (Class 1 Mathematics)? medium MCQ Functions & Theorems
• 52 What is the derivative or integral formula associated with 'Numbers from Twenty One to Fifty'? medium MCQ Calculus & Formulae
• 53 How do you find the solution set or optimum value in 'Numbers from Twenty One to Fifty'? medium MCQ Problem Solving & Optimization
• 54 What is the sum of all numbers from 21 to 30, inclusive? medium 3 marks Arithmetic series sum
• 55 Choose the correct answer: What is 28 + 23? easy MCQ 1 mark Addition of two‑digit numbers
• 56 Rahul has 47 marbles. He gives 18 marbles to his friend. How many marbles does Rahul have left? medium 2 marks Subtraction with borrowing
• 57 Find the total sum of all integers from 21 to 50, inclusive. hard 4 marks Arithmetic series sum
• 58 Find the sum of all odd numbers from 21 to 35, inclusive. hard 3 marks Summation of a series of odd numbers
• 59 A child has 38 marbles and gives 15 marbles to a friend. How many marbles does the child have left? medium 2 marks Subtraction within twenty‑one to fifty
• 60 A farmer has 23 bananas. He buys 18 more bananas. How many bananas does he have now, expressed in tens and ones? medium 2 marks Expressing number in tens and ones
• 61 What is 31 + 19? easy MCQ 1 mark Addition of two numbers
• 62 Which of the following is the correct sum of all odd numbers from 21 to 35 inclusive? hard MCQ 3 marks Summation of a sequence of odd numbers
• 63 A child has 42 candies and gives 19 candies to a friend. How many candies does the child have left? medium 2 marks Subtraction of two–digit numbers
• 64 How many tens and ones are there in the number 32? medium 2 marks Representing a number in tens and ones
• 65 What is 28 + 23? easy 1 mark Addition of two–digit numbers