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exercitii distractive de matematica
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1 + 2 + 3 – 4
1 + 2 + 4 – 3 2 • 3 + 1 – 4
1 • 3 • 4 : 2 1 • 2 • 4 – 3
2 + 3 + 4 –1 3 • 4 : 2 + 1
2 • 3 – 4 – 1
L1
1 + 2 + 3 + 4 (2 + 3 + 4) • 1
(4 + 2) • (3 – 1) 2 • 3 + 4 + 1
3 • 4 + 1 • 2 3 • 4 + 2 – 1
2 • (1 + 3 + 4) 3 • 4 + 2 + 1
L2
3 • 2 • (4 – 1) (4 + 1) • 3 + 2
1 • 4 • (2 + 3) 4 • (2 + 3) – 1
(3 • 4 – 1) • 2 3 • (4 + 2 + 1)
1 • 2 • 3 • 4 2 • 3 • 4 – 1
L3
2 • (3 • 4 + 1) 2 • 3 • 4 + 1
(2 • 3 + 1) • 4 4 • 2 + 1) • 3
2 • 3 • (4 + 1) ! !3 (4 – 1) + 2
L4
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