## Description

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Do you need a calculator to work out your shopping bill? Would you like to get some practice in doing arithmetic in your head? This app, “Numbers Game Brain“, is a trainer to help you do arithmetic in your head, which randomly generates a 3-digit target number and 6 other numbers when you choose from 20 different levels containing + – x / ( ). There is always an exact solution. There are controls to select a specific level, start the clock to show the target number, select numbers to fit into the layout, and stop the clock to finish the current puzzle, view its solution, and see the best scores for every level played in the current session.

The levels included are:

- 1[3] : ++ => find the target answer for [ ]+[ ]+[ ] using 3 of 6 numbers given.
- 2[4] : ++- => find the target answer for [ ]+[ ]+[ ]-[ ] using 4 of 6 numbers given.
- 3[4] : +++ => find the target answer for [ ]+[ ]+[ ]+[ ] using 4 of 6 numbers given.
- 4[5] : +++- => find the target answer for [ ]+[ ]+[ ]+[ ]-[ ] using 5 of 6 numbers given.
- 5[4] : (+)x(+) => find the target answer for ([ ]+[ ])x([ ]+[ ]) using 4 of 6 numbers given.
- 6[5] : (+)x(+)+ => find the target answer for ([ ]+[ ])x([ ]+[ ])+[ ] using 5 of 6 numbers given.
- 7[6] : (+)x(+)++ => find the target answer for ([ ]+[ ])x([ ]+[ ])+[ ]+[ ] using 6 of 6 numbers given.
- 8[5] : x+(xx) => find the target answer for [ ]x[ ]+([ ]x[ ]x[ ]) using 5 of 6 numbers given.
- 9[6] : x+(xx)- => find the target answer for [ ]x[ ]+([ ]x[ ]x[ ])-[ ] using 6 of 6 numbers given.
- 10[4] : x+(x) => find the target answer for [ ]x[ ]+([ ]x[ ]) using 4 of 6 numbers given.
- 11[5] : x+(x)+ => find the target answer for [ ]x[ ]+([ ]x[ ])+[ ] using 5 of 6 numbers given.
- 12[3] : xx => find the target answer for [ ]x[ ]x[ ] using 3 of 6 numbers given.
- 13[6] : xx(-)/+ => find the target answer for [ ]x[ ]x([ ]-[ ])/[ ]+[ ] using 6 of 6 numbers given.
- 14[4] : xx(+) => find the target answer for [ ]x[ ]x([ ]+[ ]) using 4 of 6 numbers given.
- 15[6] : xx(+)+(x) => find the target answer for [ ]x[ ]x([ ]+[ ])+([ ]x[ ]) using 6 of 6 numbers given.
- 16[4] : xx+ => find the target answer for [ ]x[ ]x[ ]+[ ] using 4 of 6 numbers given.
- 17[5] : xx++ => find the target answer for [ ]x[ ]x[ ]+[ ]+[ ] using 5 of 6 numbers given.
- 18[6] : xx+++ => find the target answer for [ ]x[ ]x[ ]+[ ]+[ ]+[ ] using 6 of 6 numbers given.
- 19[5] : x/(-)x => find the target answer for [ ]x[ ]/([ ]-[ ])x[ ] using 5 of 6 numbers given.
- 20[6] : x/(-)x+ => find the target answer for [ ]x[ ]/([ ]-[ ])x[ ]+[ ] using 6 of 6 numbers given.

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