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Addition and subtraction up to 100
Addition and subtraction of numbers up to 100

Addition and beyond 100

(1) Calculate and check with the solution numbers.

(a) (b) (c) (d)
23 + 20 = 43 30 + 28 =      46 + 20 =      23 + 17 =     
19 + 26 =      40 + 19 =      29 + 40 =      24 + 27 =     
24 + 17 =      17 + 36 =      31 + 28 =      28 + 30 =     
28 + 17 =      27 + 27 =      17 + 43 =      10 + 10 =     
10 + 26 =      38 + 30 =      75 + 10 =      30 + 26 =     
Results:
41   53   66   69   36   58   59   68   56 45   36   68   59   45   43  54   85   60   85

(2) Which symbol is needed? <, > or = ?

(a) (b) (c) (d)
14 + 28 50 65 16 + 21 12 + 20 20 + 15 14 + 16 21 + 28
15 + 11 33 49 15 + 25 27 + 11 26 + 22 11 + 15 25 + 15

(3) Enter the missing numbers.

+ 13 27 36
14
38
50
+ 12 24 33
30
40
58
+ 10 27 35
17
36
58

(4) Enter the missing numbers.

(a) (b) (c)
13 + 13 + 13 = _______ 32 + 24 + 10 = _______ 29 + 31 + 20 = _______
24 + 11 + 29 = _______ 17 + 31 + 25 = _______ 37 + 16 + 30 = _______
18 + 15 + 10 = _______ 43 + 10 + 10 = _______ 13 + 53 + 15 = _______
9 + 18 + 29 = _______ 26 + 12 + 28 = _______ 23 + 29 + 33 = _______
21 + 18 + 7 = _______ 24 + 29 + 26 = _______ 37 + 17 + 36 = _______
(5) Add the values below up to the last row:
[4] [7] [10] [13] [16] [19] [22] [25] [28]
↘ + ↙↘ + ↙↘ + ↙↘ + ↙ ↘ + ↙↘ + ↙↘ + ↙↘ + ↙
[   ][17] [   ][   ] [   ][   ] [   ][   ]
↘ + ↙↘ + ↙↘ + ↙ ↘ + ↙↘ + ↙↘ + ↙↘ + ↙
[   ][   ] [   ][64] [   ][   ] [   ]
↘ + ↙↘ + ↙↘ + ↙ ↘ + ↙↘ + ↙
[   ] [   ][   ] [   ][   ] [   ]
↘ + ↙↘ + ↙ ↘ + ↙↘ + ↙↘ + ↙
[   ][   ] [   ][   ][   ]

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