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Mental-Arithmetic.co.uk worksheet indexNumber Bonds to 100
Worksheet 9
Name: ____________________________
| 87 + ___ = 100 (1) | ___ + 29 = 100 (2) | ___ + 28 = 100 (3) |
| ___ + 80 = 100 (4) | ___ + 35 = 100 (5) | 68 + ___ = 100 (6) |
| ___ + 22 = 100 (7) | 46 + ___ = 100 (8) | ___ + 53 = 100 (9) |
| 78 + ___ = 100 (10) | 17 + ___ = 100 (11) | ___ + 5 = 100 (12) |
| 43 + ___ = 100 (13) | ___ + 83 = 100 (14) | ___ + 88 = 100 (15) |
| ___ + 89 = 100 (16) | 36 + ___ = 100 (17) | ___ + 55 = 100 (18) |
| 13 + ___ = 100 (19) | 30 + ___ = 100 (20) | ___ + 85 = 100 (21) |
| 83 + ___ = 100 (22) | 61 + ___ = 100 (23) | 14 + ___ = 100 (24) |
| ___ + 1 = 100 (25) | 34 + ___ = 100 (26) | 2 + ___ = 100 (27) |
| 91 + ___ = 100 (28) | ___ + 74 = 100 (29) | ___ + 1 = 100 (30) |
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