Maths For Kids

Reasoning Worksheet Pattern Question 1) Find the values Question 2 )  How many smiling face in will be there in pattern 5 Maths Olympiad Puzzle :  Olympiad Puzzle Maths Series Puzzle : Series Puzzle

Question 1 ) How many 3-digit numbers do not have an even digit or a zero? __ __ __ - Let this be a 3 digit number. Since we have to find the number of 3 digit numbers with odd digits (Do not have an even digit or Zero). Since Zero is an even digit so we have the options of only 1,3,5,7,9 to be filled at these 3 blanks. For 1st blank number of ways to fill with duplicate allowed is 5 (1,3,5,7,9) For 2nd blank number of ways to fill with duplicate allowed is 5 (1,3,5,7,9) For 3rd blank number of ways to fill with duplicate allowed is 5 (1,3,5,7,9) So,Total numbers of 3 digits in given constrain are 5*5*5=125 ======================================== Question 2) How many zeros are in 3 ? Many zeroes can b added before 3 and after 3 along with a decimal Like 000000000000000003.0000000000000000 Another solution can be this There are 3 ‘6’s in 18 There are 2 ‘5’s in 10 There are 10 ‘10’ in 100 Similarly, There are infinite ‘0′s in 3. ==================...

Maths : Time concept for Kids A clock is used to tell time. It has an hour hand and a minute hand. Some clocks have a seconds hand. There are 12 numbers from 1 to 12 on the face of the clock Between every two numbers the hour hand measures an hour and the minute hand measures 5 minutes. The hour hand goes twice across the face of the clock in one day. There are 24 hours in a day.  The minute hand goes one full circle across the face of the clock in one hour. There are 60 minutes in an hour.The minute hand goes one full circle across the face of the clock in one hour so it take 24 full circle in a day. The seconds hand goes one full circle across the face of the clock in one minute. Note: 1 hour = 60 minutes ; 1 minute = 60 seconds AM and PM The time before mid-day is denoted as a.m. and the time after mid-day as p.m.   So, the time in the morning is denoted with a.m. and that in the evening with p.m. For example :  8: 10 in the morn...

Crossword Puzzle A Across :   1  The answer obtained in a multiplication 7         The numbers that are multiplied 8         The number to be divided 9      The quotient when a number is divided by itself 10         The product when a number is multiplied by O. Down : 2          Division by zero 3          The number of zeros that are added in the product of a number by 100 4          The operation used to share equally 5          The number left over in division 6          The answer in division Maths crossword Puzzle , Algebra, Brain Tester, competitive exams, Fraction, geometry, Grade 5, Grade 6, Label : Maths for Kids, LCM and HCF, M...

Maths crossword Puzzle Puzzle A : Across  : 2 The order of a set numbers from the largest to smallest 3 The numbers that end in 0 , 2 , 4, 6 or 8 5  The smallest odd number 6 The successor of the largest 3 digit number     7 The greatest 2 digit number Down :  1  one less than a number          4 The number whose face value and place value is same  8  The numbers that end in 1 , 3 , 5 , 7 or 9      9  The place of digit 5 in 5802      10 The order to set of  numbers from the smallest to the largest. =============================================================== Puzzle B : Across : 2 This does no change when the order of numbers is changed 3 The operation used to compare two numbers 4 The process used in addition and subtraction 6 The answer obtained in addition 9 The difference obtained when a number is subtracted in addition Down : 1 Equival...

Question 1: How many triangles in the given figure must be shaded to show 5/8 Question 2: Aishi read 2/5 of a book on the first day and 1/5 of it on the second day. What fraction of it is not read ? Question 3 : Aditya painted 1/11 of his house on Monday. 2/11 of it on Tuesday and on Wednesday he painted twice as much as on Monday. What fraction of the house is painted on three days ? Question 4 : Arya has some dough . She divided the dough into 9 equal parts. She used 5 parts to make curry puffs . What fraction of the dough did Arya used ? Question 5 : What fraction of the given square in not shaded  Question 6 : Identify the fraction by given clue                       clue 1 : Product of numerator and denominator is 35                       clue 2 : Numerator and denominator are consecutive odds.           ...

1) If each edge of a cube is increased by 50%, find the percentage increase in Its surface area A) 125 % B) 150 % C) 112.5% D) 110 % Answer: A) 125% 2) How many cubes of 2cm edge can be cut out of a cube of  8cm edge A) 16 B) 9 C) 27 D) 64 Answer : D) 64 3) Find the length of the longest pole that can be placed in a room 12 m long 8m broad and 9m high. A) 14m B) 15m C) 16m D) 17m Answer:  D) 17 m 4) How many bricks, each measuring 25 cm x 11.25 cm x 6 cm, will be needed to build a wall of 10 m x 6 m x 22.5 cm? A) 5600 B) 6000 C) 8000 D) 7200 Answer : C 5) A cuboid block 6 cm by 12 cm by 15 cm is cut up into an exact number of equal cubes. Find the least possible number of cubes. A) 30 B) 40 C) 10 D) 20 Answer: B) 40 Explanation: Volume of the block = (6 x 12 x 15)  cm^3 = 1080  cm^3 Side of the largest cube = H.C.F. of 6 cm, 12 cm, 15 cm                       ...

1. A bag contains 2 yellow, 3 green and 2 blue balls. Two balls are drawn at random. What is the probability that none of the balls drawn is blue? A. 1/2 B. 10/21 C. 8/11 D. 14/21 Answer : Option B 2. Three coins are tossed. What is the probability of getting at most two head? A. 7/8 B. 1/8 C. 1/2 D. 1/7 Answer : A 3. A die is rolled twice. What is the probability of getting a sum equal to 9? A. 2/3 B. 2/9 C. 1/9 D. 1/6 Answer : C 4) 5 coins are tossed together. What is the probability of getting exactly 2 tails? A. 1/2 B. 2/5 C. 4/11 D. 5/16 5). Ramesh and Suresh go for an interview for two vacancies. The probability for the selection of Ramesh is 1/5 and whereas the probability for the selection of Suresh is 1/6. What is the probability that none of them are selected? A) 2/3 B) 1/30 C) 1/3 D) 29/30 Answer : A 6). Ramesh and Suresh go for an interview for two vacancies. The probability for the selection of Ramesh is 1/5 and wherea...