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6.784 + 571 + 10 =

51 x 2 =

5.974 - 3.267 =

2.358 + 4.784 =

50 + 20 - 5 =

974 + 3.570 + 56 =

70 + 50 - 20 =

593 - 51 =

8.300 - 647 =

49 + 30 - 10 =

4.600

65

100

69

542

102

2.707

7.653

7.365

7.142