Worksheet Solutions: Maths Tricks - 2 | Mental Maths - Class 1 PDF Download

Q1: Complete the series: 2, 5, 9, _________, 20, 27
(a) 16
(b) 18
(c) 24
(d) 14
Ans: (d)


Q2: Modi is fourteenth from the right end in a row of 40 girls. What is his position from the left end?
(a) 26th
(b) 28th
(c) 25th
(d) 27th
Ans: (d)
Ritu's rank from the right end = 14th

 So, Ritu's rank from the left end = (40-14) +1-27

Q3: Choose the letter or group of letters which is different from others.
(a) H
(b) Q
(c) T
(d) Z
Ans: (b)
Except Q, all other letters have even numbered positions in the English alphabet.

Q4: Three of the following are alike in certain way and so form a group. Which is the one that does not belong to that group?
(a) Tree
(b) Plant
(c)  Shrub
(d) Farm
Ans: (d)
All the others are forms of vegetation.

Q5: P is 40 m south-west of Q. R is 40 m south-east of Q. Then R is in which direction of P?
(a) North-East
(b) East
(c) West
(d) South
Ans: (b)


Q6: Three of the following are alike in certain way and so form a group. Which is the one that does not belong to that group.
(a) Mother
(b) Grandfather    
(c) Father            
(d) Wife
Ans: (d)
Except, wife, all others are people of one or more generation higher.

Q7: Modi is performing yoga with his head down and legs up. His face is towards the west. In which direction will his left hand be?
(a) North  
(b) South  
(b) East
(c) west
Ans: (a)
Given that the face of Modi is towards the west.

Therefore, the left hand points towards north

Q8: Find the missing term in each of the following. 4,7,12,19,28,______

(a) 30
(b) 36
(c) 39  
(d) 49
Ans: (c)


Q9: Choose the odd pair of words.
(a) Honey : Money
(b) Rust : crest
(c) Nine : Twine  
(d) Fire : Liar
Ans: (b)
All the other pair of words are rhyming words.

Q10: Rohani ranks seventh from the top and twenty sixth from the bottom in a class. How many students are there in the class?
(a) 33                              
(b) 31          
(c) 35                              
(d) 32
Ans: (d)
Rohani's rank from the top = 7th

Rohani's rank from the bottom = 26 So, Total number of students = (7 + 26)−1 = 33 − 1 = 32