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Addition Facts 1
Addition is one of the four basic operations. The other three are subtraction, multiplication and division. Addition has many important properties and we are going to help you to understand them better.
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1. Can you count to 50? Select the number which comes next.
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5 分
33
50
13
26
40
38
12
25
39
49
32
33
50
13
26
40
38
12
25
39
49
32
2. Can you count backwards from 50? Select the number which comes before.
*
5 分
35
49
10
27
9
41
50
42
28
11
36
35
49
10
27
9
41
50
42
28
11
36
3. Double the following numbers.
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7 分
96
20
44
34
26
42
52
64
82
10
13
21
26
32
41
48
96
20
44
34
26
42
52
64
82
10
13
21
26
32
41
48
4. Double the number and then add 1.
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6 分
100
91
23
48
99
47
73
59
11
23
36
45
49
29
100
91
23
48
99
47
73
59
11
23
36
45
49
29
5. Lesedi has R100. He buys 2 hamburgers for R42 each. How much change does he get?
2 分
R58
R16
R68
R26
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