TalentJR apps
Read the question, think of the answer, then tap the card to flip it and check. Mark the ones you knew — the rest come back at the end.
Think of the answer, then tap the card.
| # | Question | Answer | |
|---|---|---|---|
| 1 | What is the trick to multiply numbers close to 100? | Use base 100 and cross-subtract | |
| 2 | Is there a shortcut to square numbers ending in 5? | Yes, multiply tens digit by next and add 25 | |
| 3 | What is the square of 15 using trick? | 225 | |
| 4 | What is 12 × 11 using pattern? | 132 | |
| 5 | Is 98 × 102 easy with base 100? | Yes, answer is 9996 |