Using the 25‑25‑25 smart chart, find 9 × 25.

Using the 25‑25‑25 smart chart, find $9 \times 25$ .

medium 2 marks Class 3 · Mathematics · Smart Charts

Answer

225

The correct answer is 225 — final calculation: $250 - 25 = 225$

$9 \times 25$ can be written as $10 \times 25 - 1 \times 25$ . From the 25‑25‑25 chart, $10 \times 25 = 250$ . From the chart, $1 \times 25 = 25$ . Subtract $25$ from $250$ to obtain $225$ .
final calculation: $250 - 25 = 225$

Common mistake: Reading the wrong multiplication entry from the chart

Concept tested: 25‑25‑25 chart multiplication