Use the sign of >, < or = in the box to make the statements true:
(a) (-8) + (-4) ….. (-8) - (-4)
(b) (-3) + 7 – (19) ….. 15 – 8 + (-9)
(c) 23 – 41 + 11 ….. 23 – 41 – 11
(d) 39 + (-24) – (15) ….. 36 + (-52) – (-36)
(e) – 231 + 79 + 51 ….. – 399 + 159 + 81
(a) We have,
(-8) + (-4)
= -8 – 4
= - 12
Also,
(-8) – (-4)
= - 8 + 4
= - 4
Hence,
-12 < - 4
(-8) + (-4) < (-8) - (-4)
(b) We have,
(-3) + 7 – (19)
= - 3 + 7 – 19
= - 22 + 7
= - 15
Also,
15 – 8 + (-9)
= 15 – 8 – 9
= - 2
Hence,
- 15 < - 2
(-3) + 7 – (19) < 15 – 8 + (-9)
(c) We have,
23 - 41 + 11
= - 7
Also,
23 – 41 – 11
= 23 – 52
= - 29
Hence,
- 7 > - 29
23 – 41 + 11 > 23 – 41 – 11
(d) We have,
39 + (-24) – (15)
= 39 – 24 - 15
= 39 – 39
= 0
Also,
36 + (-52) – (- 36)
= 36 – 52 + 36
= 72 – 52
= 20
Hence,
0 < 20
39 + (-24) – (15) < 36 + (-52) – (-36)
(e) We have,
- 231 + 79 + 51
= - 231 + 130
= - 101
Also,
- 399 + 159 + 81
= - 399 + 240
= - 159
Hence,
- 101 > - 159
– 231 + 79 + 51 > – 399 + 159 + 81