Question

Add. Work out the answers mentally.
(a) 28 +62 =
(c) 157 + 398 =
Subtract. Work out the answers menta​

Answer 1

Answer:

(a) 90; (c) = 555

Step-by-step explanation:

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Answer 2

Answer:

a)90

c)555

break it down like 20 add 60 and then 2 add 8 and add them together.