Ted remembered that he had assignments for previous day-s class- He took out his notes and saw the following question -Step 1- Find 9 -5Step 2- Find -11 -7Step 3- Find -9 -3 -2 - 10Step 4-Add the values obtained in steps 1-2 and 3 - Find the result obtained in step 4 -

The correct option is A 508 (1) 9 × ( 5) = ( 45) (2) 11× ( 7) = 77 (3) 9 × ( 3) × ( 2) × 10 = 540 (4) (1) + (2) + (3) = 508 ...

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Byju's Answer

Standard VI

Mathematics

Addition of Decimals

Ted remembere...

Question

Ted remembered that he had assignments for previous day’s class. He took out his notes and saw the following question :-

Step 1: Find
$9 \times (- 5)$

Step 2: Find
$(- 11) \times (- 7)$

Step 3: Find
$(- 9) \times (- 3) \times (- 2) \times 10$

Step 4:
Add the values obtained in steps 1,2 and 3.

Find the result obtained in step 4.

-508

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Solution

The correct option is A
-508

(1) $9 \times (- 5) = (- 45)$
(2) $- 11 \times (- 7) = 77$
(3) $- 9 \times (- 3) \times (- 2) \times 10 = - 540$
(4) $(1) + (2) + (3) = - 508$

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Similar questions

Ted took out his notes and saw following questions:
1: Find $9 \times (- 5)$

2: Find $(- 11) \times (- 7)$

3: Find $(- 9) \times (- 3) \times (- 2) \times 10$

Sum of the values obtained in questions $1, 2$ and $3$ is _______.

The next day, Ted returned his report card to his class teacher but forgot to note down his total score. But luckily, he remembered his percentage of marks obtained and the maximum marks, which were 82.4% and 500 respectively. Find the marks obtained by Ted.

Preeti has solved a question in her exam using the following method. In which step has she gone wrong and what is the correct answer obtained after the calculation?
Question: $(2 p)^{3} + 3 p^{3} = 11 p^{3} + a$ . Find the value of a.
step i: $6 p^{3} + 3 p^{3} = 11 p^{3} + a$
Step ii: $9 p^{3} = 11 p^{3} + a$
step iii: $- 2 p^{3} = a$

Question 2
Find the values of the letters in the following and give reasons for the steps involved.
$4 A + 98 - -------- - C B 3 - -------- -$

Q. The following steps are followed to solve the equation.
Step 1:

5 x + 7 x - 4 x + 2 = 5

Step 2:

12 x - 4 x = 3

Step 3:

8 x = 3

Step 4:

x = 3 \times 8

Which one is the wrong step?

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The correct option is A -508 (1) 9×(−5)=(−45) (2) −11×(−7)=77 (3) −9×(−3)×(−2)×10 =−540 (4) (1)+(2)+(3)=−508

The correct option is A
-508

(1) $9 \times (- 5) = (- 45)$
(2) $- 11 \times (- 7) = 77$
(3) $- 9 \times (- 3) \times (- 2) \times 10 = - 540$
(4) $(1) + (2) + (3) = - 508$