ICSE ICSE Class 7 - CISCE Question Bank Solutions for Mathematics

If A = {p, q, r}, then number of subsets of A = ______.

If B = {5, 4, 6, 8}, then number of proper subsets of B = ____.

If C = {0}, then number of subsets of C = _____.

If M = {x : x ∈ N and x < 3}, then M has _____ proper subsets.

Is zero a rational number? Can it be written in the form `P/q`, where p and q are integers and q ≠ 0?

Evaluate:  18 -(20 - 15 ÷ 3)

Evaluate: - 15 + 24 ÷ (15 - 13)

`35 – [15 + {14 - (13 + bar(2 - 1 + 3))}]`

`27- {13 + 4 - (8 + 4 - bar(1 + 3))}`

`32 - [43-{51 - (20 - bar(18 - 7))}]`

46 - [26 - {14 - (15 - 4 ÷ 2 x 2)}]

45 – [38 – {60 ÷ 3 – (6 – 9 ÷ 3) ÷ 3}]

`17- [17 — {17 — (17 –bar(17 - 17))}]` 

`2550 – [510 – {270 – (90 – bar(80 + 7))}]`

`30 + [{ - 2 xx (25 - bar(13 - 3))}]` 

88 - {5 - (- 48) ÷ (- 16)}

`9 xx (8 - bar(3 + 2)) - 2(2 + bar(3 + 3))`

`2 – [3 – {6 – (5 – bar(4 - 3))}]`

If `x × (-1) = -36`, is x positive or negative?

If `x × (-1) = 36`, is x positive or negative?