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Mental-Arithmetic.co.uk worksheet indexNumber Bonds to 100
Worksheet 1
Name: ____________________________
| 30 + ___ = 100 (1) | 56 + ___ = 100 (2) | 91 + ___ = 100 (3) |
| 72 + ___ = 100 (4) | ___ + 53 = 100 (5) | ___ + 67 = 100 (6) |
| 29 + ___ = 100 (7) | ___ + 81 = 100 (8) | ___ + 97 = 100 (9) |
| ___ + 4 = 100 (10) | 80 + ___ = 100 (11) | ___ + 3 = 100 (12) |
| ___ + 46 = 100 (13) | 45 + ___ = 100 (14) | 78 + ___ = 100 (15) |
| 61 + ___ = 100 (16) | 42 + ___ = 100 (17) | 41 + ___ = 100 (18) |
| 58 + ___ = 100 (19) | 71 + ___ = 100 (20) | 63 + ___ = 100 (21) |
| ___ + 2 = 100 (22) | ___ + 41 = 100 (23) | 80 + ___ = 100 (24) |
| ___ + 61 = 100 (25) | 21 + ___ = 100 (26) | 27 + ___ = 100 (27) |
| ___ + 2 = 100 (28) | 85 + ___ = 100 (29) | ___ + 81 = 100 (30) |
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