0%
0 votes, 0 avg
18

Senior Level 0

Seniors Lesson 5

Wow, amazing! You're doing great! Now you’ve gained more confidence in working with 2-digit numbers, both on the abacus and without it! Keep up the fantastic work! 🌸

1 / 60

16

1

2

2 / 60

4

5

10

3 / 60

30

9

-5

4 / 60

19

-6

5

5 / 60

20

5

2

6 / 60

44

-22

11

7 / 60

10

7

-6

8 / 60

18

1

-8

9 / 60

16

-6

7

10 / 60

30

9

-7

11 / 60

50

40

-10

12 / 60

17

-10

-6

13 / 60

19

-10

-4

14 / 60

15

2

-17

15 / 60

19

-7

6

16 / 60

18

-10

-2

17 / 60

10

10

10

18 / 60

17

1

-6

19 / 60

16

-10

-5

20 / 60

10

5

1

21 / 60

16

2

-7

22 / 60

5

-5

19

23 / 60

88

11

-22

24 / 60

1

17

-10

25 / 60

5

3

10

26 / 60

17

-2

-5

27 / 60

16

-5

1

28 / 60

55

11

22

29 / 60

30

3

5

30 / 60

19

-5

-10

31 / 60

1

2

16

32 / 60

16

1

1

33 / 60

5

1

20

34 / 60

19

-3

-1

35 / 60

18

-6

1

36 / 60

2

17

-9

37 / 60

18

-1

-1

38 / 60

15

2

-1

39 / 60

4

-3

20

40 / 60

18

1

-4

41 / 60

19

-8

5

42 / 60

1

10

6

43 / 60

4

-2

20

44 / 60

16

1

-17

45 / 60

2

17

-6

46 / 60

55

33

-22

47 / 60

10

5

4

48 / 60

18

-3

-5

49 / 60

30

10

-20

50 / 60

30

4

5

51 / 60

2

-2

20

52 / 60

1

5

12

53 / 60

77

-11

-11

54 / 60

55

22

22

55 / 60

30

1

5

56 / 60

19

-9

8

57 / 60

4

-3

18

58 / 60

18

-6

7

59 / 60

15

1

-16

60 / 60

66

22

-33

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