Question

вычислите 4-45-34-23-12-1

Answer 1

4 - 45 - 34 - 23 - 12 -1= 1760
4 - 45 = 3ц 55 - 45 = 3ц 15
3ц 15 - 34 = 3ц 420 - 1520 =2ц 2420 - 1520 = 2ц 920
2ц 920 - 23 =2 ц 2760 - 4060 = 1ц 8760 - 4060 = 1ц 4760
1ц 4760 - 12 = 1ц 4760 - 3060 = 1ц 1760
1ц 1760 - 1= 1760