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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)
26 + 15 = 41 29 + 27 =      45 + 16 =      26 + 17 =     
14 + 22 =      38 + 20 =      25 + 35 =      26 + 25 =     
26 + 25 =      17 + 37 =      39 + 29 =      28 + 28 =     
28 + 18 =      25 + 25 =      14 + 46 =      12 + 12 =     
12 + 23 =      38 + 28 =      75 + 12 =      29 + 22 =     
Results:
51   54   61   60   35   56   58   66   51 36   35   66   68   46   41  50   87   60   87

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

(a) (b) (c) (d)
15 + 13 31 45 24 + 22 26 + 24 14 + 21 15 + 24 22 + 13
24 + 24 58 34 29 + 29 12 + 30 19 + 10 24 + 29 29 + 24

(3) Enter the missing numbers.

+ 16 28 35
17
36
50
+ 19 25 31
24
45
55
+ 14 27 39
18
38
54

(4) Enter the missing numbers.

(a) (b) (c)
12 + 15 + 14 = _______ 34 + 22 + 12 = _______ 25 + 37 + 28 = _______
25 + 7 + 28 = _______ 11 + 40 + 13 = _______ 33 + 15 + 34 = _______
15 + 23 + 11 = _______ 48 + 13 + 15 = _______ 15 + 55 + 10 = _______
12 + 12 + 23 = _______ 20 + 12 + 29 = _______ 23 + 24 + 33 = _______
21 + 12 + 9 = _______ 23 + 30 + 30 = _______ 36 + 18 + 34 = _______
(5) Add the values below up to the last row:
[4] [6] [8] [10] [12] [14] [16] [18] [20]
↘ + ↙↘ + ↙↘ + ↙↘ + ↙ ↘ + ↙↘ + ↙↘ + ↙↘ + ↙
[   ][14] [   ][   ] [   ][   ] [   ][   ]
↘ + ↙↘ + ↙↘ + ↙ ↘ + ↙↘ + ↙↘ + ↙↘ + ↙
[   ][   ] [   ][48] [   ][   ] [   ]
↘ + ↙↘ + ↙↘ + ↙ ↘ + ↙↘ + ↙
[   ] [   ][   ] [   ][   ] [   ]
↘ + ↙↘ + ↙ ↘ + ↙↘ + ↙↘ + ↙
[   ][   ] [   ][   ][   ]

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