Od nejjednodušších po složitější. Vyzkoušejte si své dovednosti. Řešení vyvoláte kliknutím na znaménko = u daného příkladu.
8 + ( - 7 ) = | 9 + ( - 8 ) = | 3 + ( - 6 ) = | 5 + ( - 7 ) = |
- 8 + ( - 7 ) = | - 9 + ( - 8 ) = | - 3 + ( - 6 ) = | - 5 + ( - 7 ) = |
- 7 + 6 = | - 7 + 4 = | - 7 + 9 = | - 7 + 10 = |
18 + ( - 27 ) = | 39 + ( - 48 ) = | 35 + ( - 66 ) = | 57 + ( - 87 ) = |
- 28 + ( - 17 ) = | - 59 + ( - 48 ) = | - 33 + ( - 66 ) = | - 58 + ( - 77 ) = |
- 79 + 61 = | - 78 + 24 = | - 77 + 39 = | - 67 + 14 = |
8 - ( - 7 ) = | 9 - ( - 8 ) = | 3 - ( - 6 ) = | 5 - ( - 7 ) = |
- 8 - ( - 7 ) = | - 9 - ( - 8 ) = | - 3 - ( - 6 ) = | - 5 - ( - 7 ) = |
- 7 - 6 = | - 7 - 4 = | - 7 - 9 = | - 7 - 10 = |
18 - ( - 27 ) = | 39 - ( - 48 ) = | 35 - ( - 66 ) = | 57 - ( - 87 ) = |
- 28 - ( - 17 ) = | - 59 - ( - 48 ) = | - 33 - ( - 66 ) = | - 58 - ( - 77 ) = |
- 79 - 61 = | - 78 - 24 = | - 77 - 39 = | - 67 - 14 = |
5 + ( - 7 ) = | - 5 + ( - 7 ) = | - 5 + 7 = | |
- 2 - 2 = | 1 - ( - 2 ) + ( - 3 ) = | - 1 - ( - 2 + 3 ) = | |
( - 1 - 2 ) - ( - 3 - 4 ) = | ( - 1 - 2 ) + ( - 3 + 4 ) = | ( 1 - 2 ) - ( 3 - 4 ) = | |
5 - 7 = | - 1 + ( - 2 + 3 ) = | - 1 + ( - 2 ) - ( - 3 ) - 4 = | |
- 1 - { 2 - [ - 3 + ( - 4 + 5 ) + 6 ] - 7} = |
10 - 10 = | - 10 + ( - 10 ) = | - 10 + 10 = |
- 20 - 20 - 20 = | 20 - ( 20 - 20 ) + ( - 20 ) = | - 20 - ( - 20 - 20 ) = |
( - 30 - 30 ) - ( - 30 - 30 ) = | ( - 30 - 30 ) + ( - 30 ) = | ( 30 - 20 ) - ( 20 - 30 ) = |
- 10 - 10 = | - 20 + ( - 20 ) + 20 = | - 30 + ( - 30 ) - ( - 20 ) - 20 = |
(- 3 + 2 - 1 ) + ( 3 - 2 + 1) = | 2 + [ 4 - ( - 1 + 3 ) + 5 ] = |
( 2 - 3 - 1 + 7 ) - ( - 2 + 3 + 1 - 7) = | 3 - [ 5 - ( - 2 - 1 ) - 5 ] = |
( - 9 + 14 - 5 ) - ( 4 - 7 - 1) = | 7 - 3 - [ 5 + 8 - ( 5 - 9 ) ] + 6 = |
1 - {2 - [3 - ( 4 - 5 ) - 6 ] - 7 } - 8 = | 1 - { - 2 + [ - 3 - ( - 4 + 5 ) - 6 ] + ( - 7 ) } + 8 = |
1 - {2 - [3 - ( - 4 - 5 ) - ( 6 - 7) ] } -( - 8 ) = |