Scroll:Mental Sums >> Mental Sums >> saq (1342)

Written Instructions:

For each Multiple Choice Question (MCQ), four options are given. One of them is the correct answer. Make your choice (1,2,3 or 4). Write your answers in the brackets provided..

For each Short Answer Question(SAQ) and Long Answer Question(LAQ), write your answers in the blanks provided.

Leave your answers in the simplest form or correct to two decimal places.


 

1)  

Solve the problem below.

30 x 180 = 30 x 2 x __________.


Answer:_______________




2)  

Solve the problem below.

27 x 1800 = 27 x 30 x __________.


Answer:_______________




3)  

Solve the problem below.

27 x 30 = 27 x 3 x __________.


Answer:_______________




4)  

Solve the problem below.

28 x 220 = 28 x 22 x __________.


Answer:_______________




5)  

Solve the problem below.

22 x 120 = 22 x 3 x __________.


Answer:_______________




6)  

Solve the problem below.

25 x 80 = 25 x 8 x __________.


Answer:_______________




7)  

Solve the problem below.

29 x 60 = 29 x 2 x __________.


Answer:_______________




8)  

Solve the problem below.

24 x 540 = 24 x 27 x __________.


Answer:_______________




9)  

Solve the problem below.

24 x 60 = 24 x 1 x __________.


Answer:_______________




10)  

Solve the problem below.

20 x 1440 = 20 x 18 x __________.


Answer:_______________




 

1)  

Solve the problem below.

30 x 180 = 30 x 2 x __________.

Answer: 90


SOLUTION 1 :

Step 1: 30 x 180 = 5400
Step 2: 30 x 2 = 60
Step 3: 5400 ÷ 60 = 90



2)  

Solve the problem below.

27 x 1800 = 27 x 30 x __________.

Answer: 60


SOLUTION 1 :

Step 1: 27 x 1800 = 48600
Step 2: 27 x 30 = 810
Step 3: 48600 ÷ 810 = 60



3)  

Solve the problem below.

27 x 30 = 27 x 3 x __________.

Answer: 10


SOLUTION 1 :

Step 1: 27 x 30 = 810
Step 2: 27 x 3 = 81
Step 3: 810 ÷ 81 = 10



4)  

Solve the problem below.

28 x 220 = 28 x 22 x __________.

Answer: 10


SOLUTION 1 :

Step 1: 28 x 220 = 6160
Step 2: 28 x 22 = 616
Step 3: 6160 ÷ 616 = 10



5)  

Solve the problem below.

22 x 120 = 22 x 3 x __________.

Answer: 40


SOLUTION 1 :

Step 1: 22 x 120 = 2640
Step 2: 22 x 3 = 66
Step 3: 2640 ÷ 66 = 40



6)  

Solve the problem below.

25 x 80 = 25 x 8 x __________.

Answer: 10


SOLUTION 1 :

Step 1: 25 x 80 = 2000
Step 2: 25 x 8 = 200
Step 3: 2000 ÷ 200 = 10



7)  

Solve the problem below.

29 x 60 = 29 x 2 x __________.

Answer: 30


SOLUTION 1 :

Step 1: 29 x 60 = 1740
Step 2: 29 x 2 = 58
Step 3: 1740 ÷ 58 = 30



8)  

Solve the problem below.

24 x 540 = 24 x 27 x __________.

Answer: 20


SOLUTION 1 :

Step 1: 24 x 540 = 12960
Step 2: 24 x 27 = 648
Step 3: 12960 ÷ 648 = 20



9)  

Solve the problem below.

24 x 60 = 24 x 1 x __________.

Answer: 60


SOLUTION 1 :

Step 1: 24 x 60 = 1440
Step 2: 24 x 1 = 24
Step 3: 1440 ÷ 24 = 60



10)  

Solve the problem below.

20 x 1440 = 20 x 18 x __________.

Answer: 80


SOLUTION 1 :

Step 1: 20 x 1440 = 28800
Step 2: 20 x 18 = 360
Step 3: 28800 ÷ 360 = 80