Printable Adding 8 Flash Cards
Adding 8 has the cleanest make-ten move in the table: 8 always takes exactly 2 — so 8 + 6 becomes 10 + 4 before the eye finishes reading it. Equivalently, add 10 and take 2 away. These fold-over flashcards cover 1 + 8 through 12 + 8.
How to Use These Flash Cards
Chant the move: "8 takes 2." For 8 + 5, the 5 gives up 2, leaving 3 — 13. Or teach the route through ten: 5 + 10 is 15, minus 2 is 13 — same answer either way. The double 8 + 8 = 16 anchors the middle of the deck, and 9 + 8 = 17 is usually the last card to become automatic.
How to Cut and Fold
- Print the PDF single-sided on plain paper or light cardstock.
- Cut along the solid lines to separate the cards.
- Fold each card along the dashed center line so the answer sits behind the question, and turn the card over like a page to check.
- Optional: a dab of glue inside the fold makes a sturdy double-thick card.
Frequently Asked Questions
What does "8 takes 2" mean?
Eight needs exactly 2 to make ten, so in any +8 fact, move 2 across: 8 + 7 becomes 10 + 5 = 15. One fixed move covers the whole family.
What is the add-10-take-2 shortcut?
Since 8 is 10 minus 2, add ten and back off two: 6 + 8 is 16 minus 2 = 14. Children who like round numbers often prefer this door to the make-ten split — both are correct.
Why is 9 + 8 so stubborn?
It is the biggest non-double crossing in the table. Route it through either neighbor: one less than 9 + 9 = 18, or make ten the other way — 9 takes 1 from the 8, so 10 + 7 = 17.