Combining list in a Cartesian product format with addition operation?

Question

I have two list to begin with.

list1 = {1, 2, 3};
list2 = {10, 20, 30, 40};

I want to obtain the following output (order unimportant):

{11, 12, 13, 21, 22, 23, 31, 32, 33, 41, 42, 43}

I can obtain it via "Table, For, Do" etc. command but I am looking for a concise code to achieve such an output?

Nasser · Accepted Answer · 2019-04-22 05:57:00Z

4

Outer[Plus, list2, list1] // Flatten

answered Apr 22 '19 at 5:57

Nasser

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Carl Woll · Accepted Answer · 2019-04-22 14:52:06Z

4

A variation of Coolwater's answer:

Tuples @ Unevaluated[{10, 20, 30, 40} + {1,2,3}]

{11, 12, 13, 21, 22, 23, 31, 32, 33, 41, 42, 43}

answered Apr 22 '19 at 14:52

Carl Woll

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Bill · Accepted Answer · 2019-04-22 05:58:55Z

2

list1+#&/@list2//Flatten

(*{11,12,13,21,22,23,31,32,33,41,42,43}*)

answered Apr 22 '19 at 5:58

Bill

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Coolwater · Accepted Answer · 2019-04-22 07:32:46Z

2

Total[Tuples[{list2, list1}], {2}]
(* {11, 12, 13, 21, 22, 23, 31, 32, 33, 41, 42, 43} *)

answered Apr 22 '19 at 7:32

Coolwater

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4 Answers 4