Question

105x37+63;7x(239+78).

Answer 1

105×37+63=3948
1)105×37=3885
2)3885+63=3948
7×(239+78)=2219
1)239+78=317
2)7×317=2219

Answer 2

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Answer 3

Let's solve these mathematical expressions step by step:

1. $105 \times 37 + 63$: First, multiply 105 by 37: $105 \times 37 = 3885$ Then, add 63 to the result: $3885 + 63 = 3948$

So, $105 \times 37 + 63 = 3948$.

2. $7 \times (239 + 78)$: First, add 239 and 78: $239 + 78 = 317$ Then, multiply the result by 7: $7 \times 317 = 2219$

So, $7 \times (239 + 78) = 2219$.