Table 1 Pre-test items
From: Mathematical practices and mathematical modes of enquiry: same or different?
Circle the number that is nearest in size to the answer (do not work out the answer) | |||||||
|---|---|---|---|---|---|---|---|
2.9 × 7 | 0.002 | 0.02 | 0.2 | 2 | 20 | 200 | 2000 |
0.29 × 7.1 | 0.002 | 0.02 | 0.2 | 2 | 20 | 200 | 2000 |
59 ÷ 190 | 0.003 | 0.03 | 0.3 | 3 | 30 | 300 | 3000 |