NNAT Practice Pack — Grade 1

Answer Key — NNAT Grade 1

1. 1. E — Each row holds the same three figures, sliding one place every row — so every row and every column contains each figure exactly once. The empty corner's row and column are both missing the same figure: E. The others: A the right figure at the wrong size; B a figure that breaks the cycle; C the right figure with the wrong fill; D repeats the figure beside the empty cell.
2. 2. A — Put the two pieces one on top of the other, keeping every square that is coloured in EITHER piece. Counting square by square gives 12 coloured squares in the finished picture.
3. 3. B — Follow the pattern's rows and columns into the hole: the missing piece must continue them without a jump. B lines up exactly. The others don't: A the right patch turned a quarter-turn; C the pattern too tightly packed; D the pattern at the wrong size; E the right patch mirrored.
4. 4. C — In the top row, the figure's fill darkens one step. Applying the same change to the bottom figure gives C. The others each make a specific mistake: A the bottom figure with no rule applied; B applies the change twice; D applies a different rule than the top row shows; E copies the top row's result instead of transforming the bottom figure.
5. 5. E — Each row holds the same three figures, sliding one place every row — so every row and every column contains each figure exactly once. The empty corner's row and column are both missing the same figure: E. The others: A the right figure with the wrong fill; B copies the far corner; C a figure that breaks the cycle; D the right figure at the wrong size.
6. 6. B — Put the two pieces one on top of the other, keeping every square that is coloured in EITHER piece. Counting square by square gives 9 coloured squares in the finished picture.
7. 7. B — Follow the pattern's rows and columns into the hole: the missing piece must continue them without a jump. B lines up exactly. The others don't: A shifted sideways off the pattern's rhythm; C the pattern too tightly packed; D the pattern at the wrong size; E the right patch mirrored.
8. 8. A — In the top row, the figure doubles. Applying the same change to the bottom figure gives A. The others each make a specific mistake: B right change, wrong figure shape; C the bottom figure with no rule applied; D applies a different rule than the top row shows; E copies the top row's result instead of transforming the bottom figure.
9. 9. C — Each row holds the same three figures, sliding two places every row — so every row and every column contains each figure exactly once. The empty corner's row and column are both missing the same figure: C. The others: A repeats the figure above the empty cell; B repeats the figure beside the empty cell; D the right figure at the wrong size; E the right figure with the wrong fill.
10. 10. E — Put the two pieces one on top of the other, keeping every square that is coloured in EITHER piece. Counting square by square gives 9 coloured squares in the finished picture.
11. 11. E — Follow the pattern's rows and columns into the hole: the missing piece must continue them without a jump. E lines up exactly. The others don't: A the right patch turned a quarter-turn; B the pattern at the wrong size; C the patch from the wrong place in the pattern; D the right patch mirrored.
12. 12. B — In the top row, the figure doubles. Applying the same change to the bottom figure gives B. The others each make a specific mistake: A the bottom figure with no rule applied; C copies the top row's result instead of transforming the bottom figure; D a look-alike that doesn't follow the rule; E applies a different rule than the top row shows.
13. 13. E — Each row holds the same three figures, sliding one place every row — so every row and every column contains each figure exactly once. The empty corner's row and column are both missing the same figure: E. The others: A the right figure with the wrong fill; B repeats the figure above the empty cell; C a figure that breaks the cycle; D the right figure at the wrong size.
14. 14. D — Put the two pieces one on top of the other, keeping every square that is coloured in EITHER piece. Counting square by square gives 7 coloured squares in the finished picture.
15. 15. C — Follow the pattern's rows and columns into the hole: the missing piece must continue them without a jump. C lines up exactly. The others don't: A the right patch mirrored; B shifted sideways off the pattern's rhythm; D the patch from the wrong place in the pattern; E the right patch turned a quarter-turn.
16. 16. D — In the top row, the figure doubles. Applying the same change to the bottom figure gives D. The others each make a specific mistake: A applies a different rule than the top row shows; B copies the top row's result instead of transforming the bottom figure; C right change, wrong figure shape; E the bottom figure with no rule applied.
17. 17. D — Each row holds the same three figures, sliding one place every row — so every row and every column contains each figure exactly once. The empty corner's row and column are both missing the same figure: D. The others: A the right figure at the wrong size; B a figure that breaks the cycle; C the right figure with the wrong fill; E copies the far corner.
18. 18. B — Put the two pieces one on top of the other, keeping every square that is coloured in EITHER piece. Counting square by square gives 6 coloured squares in the finished picture.
19. 19. E — Follow the pattern's rows and columns into the hole: the missing piece must continue them without a jump. E lines up exactly. The others don't: A the patch from the wrong place in the pattern; B the pattern at the wrong size; C the right patch mirrored; D the pattern too tightly packed.
20. 20. B — In the top row, the figure shrinks. Applying the same change to the bottom figure gives B. The others each make a specific mistake: A the bottom figure with no rule applied; C applies a different rule than the top row shows; D copies the top row's result instead of transforming the bottom figure; E right change, wrong figure shape.