1. The value of 5 ÷ (-1) does not lie between (a) 0 and – 10
(b)0 and 10
(c) – 4 and – 15
(d)– 6 and 6
2. Which of the following satisfies the equation –6 + x =.–12 ?
(a) 2
(b)6
(c) –6
(d)–2
3. Which of the following shows the maximum rise in temperature?
(a) 230
to 320
(b)–100
to +10
(c) –180
to –110
(d)–5
° to 5
°
4. If ‘a’ and ‘b’ are two integers, then, which of the following may not be an
integer?
(a) a + b
(b)a – b
(c) a × b
(d)a ÷ b
5. Verify the following.
(–48) × [(–6) + (–8)] = [(–48) × (–6)] + [(–48) + (–8)]
6. If k + 7 = 16, find the value of 8k – 72.
7. Verify commutative law for addition of integers for :
a = –2, b = –5
pls help me class 7.
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