Ages 5+ · Abacus · Adding
Make ten
The big ideaA whole row is ten. Find the beads that fill it up.
How it works
A whole row on the frame is ten beads.
Some beads and some more beads can make ten.
Find the missing part: how many more fill the row?
Seven and three make ten. Six and four make ten. Five and five make ten.
Example 1: Seven and three
- Seven beads are across.
- Slide more beads across until the row is full: three more.
- 7 + 3 = 10
Seven and three make a full row.Example 2: Eight and two
- Eight beads are across.
- The row needs two more to be full.
- 8 + 2 = 10
Eight and two make a full row.Example 3: Five and five
- Five beads are across.
- Five more beads fill the row.
- 5 + 5 = 10
Five and five make a full row.Example 4: Ben's cupcakes
- Ben's tray has ten cups. Six cupcakes are in.
- Four cups are empty.
- 6 + 4 = 10
- Four more cupcakes fill the tray.
Six cupcakes and four more make ten.Words to know
- a ten
- A full row of ten beads.
- missing part
- The beads you still need to fill the row.
- tray
- Ben's tray has ten cups.
Watch out
- Fill the row all the way to ten.
- Seven needs three more, not four.
- Check by counting every bead across: there must be ten.
Try it
- Seven and what make ten?
- Six and what make ten?
- Five beads are across. How many more fill the row?
- Mia has ten fingers. Three are up. How many are down?
Answers: 1. 3 · 2. 4 · 3. 5 · 4. 7
Try at homeAsk a grown-up to play. Hold up some fingers on both hands. Say how many are up, and how many are down. They always make ten.
For grown-upsHold up some fingers on both hands. Say how many are up and how many are down: they always make ten.