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.

1500 × 150 = 15 × 15 × _____


Answer:_______________




2)  

Solve the problem below.

2500 × 50 = 25 × 5 × _____


Answer:_______________




3)  

Solve the problem below.

150 × 20 = 15 × 20 × _____


Answer:_______________




4)  

Solve the problem below.

400 × 30 = 40 × 3 × _____


Answer:_______________




5)  

Solve the problem below.

8200 × 240 = 82 × 24 × _____


Answer:_______________




6)  

Solve the problem below.

300 × 40 = 3 × 4 × _____


Answer:_______________




7)  

Solve the problem below.

100 × 40 = 10 × 40 × _____


Answer:_______________




8)  

Solve the problem below.

2200 × 50 = 220 × 5 × _____


Answer:_______________




9)  

Solve the problem below.

2300 × 60 = 23 × 6 × _____


Answer:_______________




10)  

Solve the problem below.

1800 × 20 = 18 × 2 × _____


Answer:_______________




 

1)  

Solve the problem below.

1500 × 150 = 15 × 15 × _____

Answer: 1000


SOLUTION 1 :

Step 1: 1500 x 150 = 225 000
Step 2: 15 x 15 = 225
Step 3: 225 000 ÷ 225 = 1000



2)  

Solve the problem below.

2500 × 50 = 25 × 5 × _____

Answer: 1000


SOLUTION 1 :

Step 1: 2500 x 50 = 125 000
Step 2: 25 x 5 = 125
Step 3: 125 000 ÷ 125 = 1000



3)  

Solve the problem below.

150 × 20 = 15 × 20 × _____

Answer: 10


SOLUTION 1 :

Step 1: 150 x 20 = 3000
Step 2: 15 x 20 = 300
Step 3: 3000 ÷ 300 = 10



4)  

Solve the problem below.

400 × 30 = 40 × 3 × _____

Answer: 100


SOLUTION 1 :

Step 1: 400 x 30 = 12000
Step 2: 40 x 3 = 120
Step 3: 12000 ÷ 120 = 100



5)  

Solve the problem below.

8200 × 240 = 82 × 24 × _____

Answer: 1000


SOLUTION 1 :

Step 1: 8200 x 240 = 1968 000
Step 2: 82 x 24 = 1968
Step 3: 1968 000 ÷ 1968 = 1000



6)  

Solve the problem below.

300 × 40 = 3 × 4 × _____

Answer: 1000


SOLUTION 1 :

Step 1: 300 x 40 = 12 000
Step 2: 3 x 4 = 12
Step 3: 12 000 ÷ 12 = 1000



7)  

Solve the problem below.

100 × 40 = 10 × 40 × _____

Answer: 10


SOLUTION 1 :

Step 1: 100 x 40 = 4000
Step 2: 10 x 40 = 400
Step 3: 4000 ÷ 400 = 10



8)  

Solve the problem below.

2200 × 50 = 220 × 5 × _____

Answer: 100


SOLUTION 1 :

Step 1: 2200 x 50 = 110000
Step 2: 220 x 5 = 1100
Step 3: 110000 ÷ 1100 = 100



9)  

Solve the problem below.

2300 × 60 = 23 × 6 × _____

Answer: 1000


SOLUTION 1 :

Step 1: 2300 x 60 = 138 000
Step 2: 23 x 6 = 138
Step 3: 138 000 ÷ 138 = 1000



10)  

Solve the problem below.

1800 × 20 = 18 × 2 × _____

Answer: 1000


SOLUTION 1 :

Step 1: 1800 x 20 = 36 000
Step 2: 18 x 2 = 36
Step 3: 36 000 ÷ 36 = 1000