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.

27 x 210 = 27 x 3 x __________.


Answer:_______________




2)  

Solve the problem below.

22 x 1050 = 22 x 15 x __________.


Answer:_______________




3)  

Solve the problem below.

29 x 90 = 29 x 3 x __________.


Answer:_______________




4)  

Solve the problem below.

25 x 700 = 25 x 10 x __________.


Answer:_______________




5)  

Solve the problem below.

25 x 120 = 25 x 4 x __________.


Answer:_______________




6)  

Solve the problem below.

21 x 1190 = 21 x 17 x __________.


Answer:_______________




7)  

Solve the problem below.

22 x 160 = 22 x 2 x __________.


Answer:_______________




8)  

Solve the problem below.

21 x 480 = 21 x 24 x __________.


Answer:_______________




9)  

Solve the problem below.

25 x 60 = 25 x 2 x __________.


Answer:_______________




10)  

Solve the problem below.

26 x 280 = 26 x 14 x __________.


Answer:_______________




 

1)  

Solve the problem below.

27 x 210 = 27 x 3 x __________.

Answer: 70


SOLUTION 1 :

Step 1: 27 x 210 = 5670
Step 2: 27 x 3 = 81
Step 3: 5670 ÷ 81 = 70



2)  

Solve the problem below.

22 x 1050 = 22 x 15 x __________.

Answer: 70


SOLUTION 1 :

Step 1: 22 x 1050 = 23100
Step 2: 22 x 15 = 330
Step 3: 23100 ÷ 330 = 70



3)  

Solve the problem below.

29 x 90 = 29 x 3 x __________.

Answer: 30


SOLUTION 1 :

Step 1: 29 x 90 = 2610
Step 2: 29 x 3 = 87
Step 3: 2610 ÷ 87 = 30



4)  

Solve the problem below.

25 x 700 = 25 x 10 x __________.

Answer: 70


SOLUTION 1 :

Step 1: 25 x 700 = 17500
Step 2: 25 x 10 = 250
Step 3: 17500 ÷ 250 = 70



5)  

Solve the problem below.

25 x 120 = 25 x 4 x __________.

Answer: 30


SOLUTION 1 :

Step 1: 25 x 120 = 3000
Step 2: 25 x 4 = 100
Step 3: 3000 ÷ 100 = 30



6)  

Solve the problem below.

21 x 1190 = 21 x 17 x __________.

Answer: 70


SOLUTION 1 :

Step 1: 21 x 1190 = 24990
Step 2: 21 x 17 = 357
Step 3: 24990 ÷ 357 = 70



7)  

Solve the problem below.

22 x 160 = 22 x 2 x __________.

Answer: 80


SOLUTION 1 :

Step 1: 22 x 160 = 3520
Step 2: 22 x 2 = 44
Step 3: 3520 ÷ 44 = 80



8)  

Solve the problem below.

21 x 480 = 21 x 24 x __________.

Answer: 20


SOLUTION 1 :

Step 1: 21 x 480 = 10080
Step 2: 21 x 24 = 504
Step 3: 10080 ÷ 504 = 20



9)  

Solve the problem below.

25 x 60 = 25 x 2 x __________.

Answer: 30


SOLUTION 1 :

Step 1: 25 x 60 = 1500
Step 2: 25 x 2 = 50
Step 3: 1500 ÷ 50 = 30



10)  

Solve the problem below.

26 x 280 = 26 x 14 x __________.

Answer: 20


SOLUTION 1 :

Step 1: 26 x 280 = 7280
Step 2: 26 x 14 = 364
Step 3: 7280 ÷ 364 = 20