Scroll:Mental Sums >> Mental Sums >> saq (503)

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.

2400 × 30 = 240 × 3 × _____


Answer:_______________




2)  

Solve the problem below.

250 × 30 = 25 × 30 × _____


Answer:_______________




3)  

Solve the problem below.

1800 × 40 = 18 × 4 × _____


Answer:_______________




4)  

Solve the problem below.

6600 × 240 = 66 × 24 × _____


Answer:_______________




5)  

Solve the problem below.

300 × 40 = 30 × 4 × _____


Answer:_______________




6)  

Solve the problem below.

70 × 40 = 7 × 40 × _____


Answer:_______________




7)  

Solve the problem below.

1200 × 40 = 12 × 4 × _____


Answer:_______________




8)  

Solve the problem below.

2600 × 120 = 26 × 12 × _____


Answer:_______________




9)  

Solve the problem below.

2000 × 40 = 200 × 4 × _____


Answer:_______________




10)  

Solve the problem below.

100 × 20 = 10 × 20 × _____


Answer:_______________




 

1)  

Solve the problem below.

2400 × 30 = 240 × 3 × _____

Answer: 100


SOLUTION 1 :

Step 1: 2400 x 30 = 72000
Step 2: 240 x 3 = 720
Step 3: 72000 ÷ 720 = 100



2)  

Solve the problem below.

250 × 30 = 25 × 30 × _____

Answer: 10


SOLUTION 1 :

Step 1: 250 x 30 = 7500
Step 2: 25 x 30 = 750
Step 3: 7500 ÷ 750 = 10



3)  

Solve the problem below.

1800 × 40 = 18 × 4 × _____

Answer: 1000


SOLUTION 1 :

Step 1: 1800 x 40 = 72 000
Step 2: 18 x 4 = 72
Step 3: 72 000 ÷ 72 = 1000



4)  

Solve the problem below.

6600 × 240 = 66 × 24 × _____

Answer: 1000


SOLUTION 1 :

Step 1: 6600 x 240 = 1584 000
Step 2: 66 x 24 = 1584
Step 3: 1584 000 ÷ 1584 = 1000



5)  

Solve the problem below.

300 × 40 = 30 × 4 × _____

Answer: 100


SOLUTION 1 :

Step 1: 300 x 40 = 12000
Step 2: 30 x 4 = 120
Step 3: 12000 ÷ 120 = 100



6)  

Solve the problem below.

70 × 40 = 7 × 40 × _____

Answer: 10


SOLUTION 1 :

Step 1: 70 x 40 = 2800
Step 2: 7 x 40 = 280
Step 3: 2800 ÷ 280 = 10



7)  

Solve the problem below.

1200 × 40 = 12 × 4 × _____

Answer: 1000


SOLUTION 1 :

Step 1: 1200 x 40 = 48 000
Step 2: 12 x 4 = 48
Step 3: 48 000 ÷ 48 = 1000



8)  

Solve the problem below.

2600 × 120 = 26 × 12 × _____

Answer: 1000


SOLUTION 1 :

Step 1: 2600 x 120 = 312 000
Step 2: 26 x 12 = 312
Step 3: 312 000 ÷ 312 = 1000



9)  

Solve the problem below.

2000 × 40 = 200 × 4 × _____

Answer: 100


SOLUTION 1 :

Step 1: 2000 x 40 = 80000
Step 2: 200 x 4 = 800
Step 3: 80000 ÷ 800 = 100



10)  

Solve the problem below.

100 × 20 = 10 × 20 × _____

Answer: 10


SOLUTION 1 :

Step 1: 100 x 20 = 2000
Step 2: 10 x 20 = 200
Step 3: 2000 ÷ 200 = 10