Class 1 
Mathematics 
Mathematics Basic 1
Complete the addition and related subtraction sentences
1) 13 + [     ]  = 18 -->18 -13=[.   ]
2) 9 + [.    ] = 11--> 11 - 9= [.  ]
3) 16 + [.  ] = 19 --> 19 - 16=[.    ]
4) 12 + [.   ] = 15 --> 15 - 12 = [.    ]
5) 18 + [.   ] = 24 --> 24 - 18 = [.     ]
6) 7 + [.   ] = 14 --> 14 - 7 = [.    ]
Subtract the following
7) 18 - 6 = .......
8) 30 - 3 = .......
9) 22 - 4 = .......
10) 19 - 5 = ........
11) 14 - 8 = .........
12) 33 - 11 = ........
 Word problem addition and subtraction
13) What is the sum of 20 and 19 ? .........+........=........
14) What is the sum of 18 and 10? .......+......=......
15) What is the difference between 17 and 4?.......-......=......
16) From 30 take away 18. ........-........= .......
Draw four 2D shapes.
17. 
18.
19.
20. 
Basic 1
Mathematics
Use less than, more than or equal to.
1. 98 is ______________________ 89
2. 100 is  ____________________ 100
3. 67 is  ______________________ 67
4. 99 is  ______________________ 90
5. 78 is  ______________________ 87
Find the missing addends.
6. 18 +   ______  =  29     
7. 15 +   ______  = 30
8. 12 +   ______  = 25                                   25  - 12 =   ______
9. 14 +   ______  = 27                                   27  - 14 =    ______
10. 16 + ______  =32                                    32  -  _____ =16
Write these figures in words
11. 99 =  _______________________________________
12. 66 =  _______________________________________
13. 100 = _______________________________________
14. 85 =  _______________________________________
15. 77 =  _______________________________________
Add the following numbers
16. 17 + 17 = _____                                    17. 20 + 15 = _____
18. 19 + 15 = _____                                     19. 11 +  9 =  _____
20. 10 + 18 = _____








