Adding Odd Numbers

Q.

Question 2(b)

Find the product by suitable arrangement:

$4\times 166\times 25$

Q.

Question 2(a)

Find the product by suitable arrangement:
$2\times 1768\times 50$

Q.

If the sum of two whole numbers is odd, then their differences is also odd.

1. True
2. False

Q.

Find the value
$-13+(-69)+57-(-89)-(53+(-49\left)\right)=$

1. 50

2. 60

3. 80

4. 70

Q.

The sum of first 16 odd numbers is ___.

1. 256

2. 286

3. 296

4. 246

Q.

The addition of any two natural numbers will be less than any of the two numbers.

1. True

2. False

Q. Express each of the following as the sum of odd natural numbers.
${12}^3$

Q. Express each of the following as the sum of odd natural numbers.
$8^3$

Q. The sum of first $n$ consecutive odd numbers is equal to $n^2$.

1. True
2. False

Q. Convert the given tree into arithmetical expression.

1. $(10\times 5)+(2\times 16)$
2. $(10+5)\times (2\times 16)$
3. $(10+5)+(2+16)$
4. $(10+5)\times (2+16)$

Q. Evaluate: $-13+(-69)+57-(-89)-(53+(-49\left)\right)$ [1 MARK]

Q. Evaluate: [1 MARK]
$-13+(-69)+57-(-89)-(53+(-49\left)\right)$

Q. 1 + 3 + 5 + 7 + 9 + 11 =

1. $2^2$
2. $4^2$
3. $6^2$
4. $8^2$

Q. Match the following.

1. 1110
2. 42
3. 2×3
4. 2×5

Q. Find the value of $(5+7+9+11+13).$

1. 45
2. 49
3. 36
4. 39

Q.

$-13+(-69)+57-(-89)-(53+(-49\left)\right)=$

1. 50

2. 60

3. 70

4. 80

Q.

$-13+(-69)+57-(-89)-(53+(-49\left)\right)=$

1. 50

2. 60

3. 70

4. 80

Q. The sum of first 14 odd numbers is _____.

1. 196
2. 197
3. 145
4. 169

Q.

The sum of any two natural numbers will be less than any of the addends.

1. True

2. False

Q. The sum of first $n$ consecutive odd numbers is equal to $n^2$.

1. True
2. False