Question

Subject : ALGEBRA

Q1) simplify (BODMAS)

1. 20-(10-3+2)
2. 50-[20+{30-(20-5)}]
3. 100-3[20+{50-40}]
4. 5+[6{5-4+1}]
5. 25×{(48÷4)-9}
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Answer 1

Answer:

1st answer is 15

2nd answer is 5

3rd answer is 10

4th answer is 5

5th answer is 75

Answer 2

Step-by-step explanation:

(1) 20-(10-3+2) (2) 50-[20+{30-(20-5)}]

= 20-( 10-5) = 50-[20+{ 30-(15)}]

= 20-( 5 ) = 50-[20+{15}]

= 20-5 = 50-[35]

= 15 = 15

(3) 100-3[20+{50-40}] (4) 5+[6{5-4+1}]

= 100- 3[20+10] = 5+[6{ 5-5}]

= 100-3[30] = 5+[6{0}

= 100-90 = 10 = 5+[0] = 0

(5) 25×{(48÷4) -9}

= 25 ×{ 12 -9 }

= 25×{3} = 75