Question

2.
20 shaded blocks

Explanation:

To solve the problem (assuming we need to verify the number of shaded blocks or sum the numbers, but since the problem isn't clear, let's assume we count the shaded blocks):

Step 1: Identify Shaded Blocks

Count each colored (orange and blue) block:

• Orange blocks: Let's list them: 20, 13, 14, 12, 11, 10, 7, 8, 1 (wait, no, better to count each shaded cell. Wait, the grid has orange and blue cells. Let's count:

Looking at the grid:

Row 1 (top): Orange (1), Blue (1) → 2
Row 2: Blue (1), Orange (1) → 2
Row 3: Blue (2), Orange (2) → 4
Row 4: Blue (1), Orange (1) → 2
Row 5: Orange (1), Blue (1) → 2
Row 6: Orange (2), Blue (2) → 4
Row 7: Orange (1), Blue (1) → 2
Row 8 (bottom): Blue (1), Orange (1) → 2

Now sum: 2+2+4+2+2+4+2+2 = 20. Which matches the "20 shaded blocks" note.

Answer:

The number of shaded blocks is 20 (or if summing numbers, let's sum them:

Orange numbers: 20,13,14,12,11,10,7,8,1 → sum: 20+13=33, +14=47, +12=59, +11=70, +10=80, +7=87, +8=95, +1=96

Blue numbers:15,16,17,19,18,5,6,4,2 → sum:15+16=31, +17=48, +19=67, +18=85, +5=90, +6=96, +4=100, +2=102

Total sum: 96+102=198. But since the problem's context is "20 shaded blocks", the main answer about shaded blocks is 20.

Final Answer (for shaded blocks): 20