SO
(x - y) + z = x - y - z), for all numbers x,
with y >
.
Now use this idea to calculate these without pen a
• (135 – 73) + 23
• (38-84) +
(19-6.5) + 5.5
135 - (35 - 18)
• 4.2 - (3.2 - 2.3)
Moy 2
Answers
Answered by
0
Answer:
(135-73)+23
= 62+23
=85
(38-84)+(19-6.5)+5.5
= -46+12.5+5.5
= -28
135-(35-18)
= 135-17
= -182
4.2-(3.2-2.3)
= 4.2-0.9
=3.3
I hope this answer is helpful for you
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