Question

4 (E)
Evaluate :
0.8x0.8 x 0.8 +0.5x0.5x0.5
(i)
0.8x0.8 -0.8x0.5 +0.5x 0.5​

Answer 1

Answer:

${0.8}^{3} + {0.5}^{3}$

$0.512 + 0.125$

$0.637$

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Answer 2

Answer:

1:-8/10×8/10×8/10+5/10×5/10×5/10

4/5×4/5×4/5+1/2+1/2+1/2

64/125+1/8

212/1000+125/1000

337/1000

0.337

2:-8/10×8/10-8/10×5/10+5/10×5/10

4/5×4/5-4/5×1/2+1/2×1/2

16/25-4/5×1/4×1/2

-4/25×1/8

-1/50