(1) Вычислите и проверьте с помощью чисел решения.

(a)	(b)	(c)	(d)
23 + 20 = 43	27 + 21 =	40 + 20 =	23 + 19 =
14 + 29 =	36 + 20 =	35 + 36 =	24 + 29 =
24 + 18 =	19 + 35 =	31 + 25 =	27 + 28 =
27 + 12 =	25 + 29 =	19 + 49 =	15 + 12 =
15 + 30 =	40 + 28 =	76 + 12 =	27 + 29 =
Результаты: 42   54   60   71   45   48   56   68   56 43   45   68   56   39   43  54   88   68   88

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(2) Какой символ нужен? <, > или = ?

(a)	(b)	(c)	(d)
16 + 20 55	67 28 + 17	12 + 18 18 + 20	16 + 28 17 + 20
25 + 11 43	44 12 + 20	18 + 14 17 + 28	11 + 12 20 + 25

(3) Введите пропущенные числа.

+ 11 28 36 17 33 56

+ 14 25 33 30 49 51

+ 15 27 40 18 33 51

(4) Введите пропущенные числа.

(a)	(b)	(c)
14 + 14 + 13 = _______	31 + 21 + 11 = _______	21 + 39 + 26 = _______
30 + 5 + 30 = _______	15 + 42 + 22 = _______	35 + 25 + 35 = _______
17 + 19 + 16 = _______	43 + 15 + 12 = _______	11 + 53 + 20 = _______
5 + 20 + 23 = _______	36 + 19 + 30 = _______	29 + 24 + 40 = _______
28 + 16 + 6 = _______	23 + 22 + 25 = _______	40 + 16 + 40 = _______

(٥(5) Добавьте значения ниже до последней строки:

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