Tens in Tens

What you need:

• Ten 10c coins
• Piece of paper

What to do:

Show your child six 10c coins. Count together to find it is worth 60c (10, 20, 30, 40, 50, 60). Write down the number 60. Ask your child how many tens are in 60? They will count the number of coins. Show 80c and write the number 80. Ask your child how many tens are in 80? They will count the number of coins.

When your child can do these easily, without counting the number of coins, introduce a 50c coin, write the number 50 and ask how many tens are in 50?

What to expect your child to do:

They will begin by counting the number of coins to find how many tens are in a decade number. Expect over time that they will see the answer from the written number.

Variation:

As an extension write other numbers, for example 43, and ask how many tens are in 43.

He Kupu Māori:

 kapa, uka coin hēneti cent

He Whakawhitinga Kōrero:

• E hia ngā kapa tekau hēneti? (How many 10 cent coins are there?)
• Tatauria ngā tekau hēneti (tekau, rua tekau, toru tekau ...) (Count the ten cents, 10, 20, 30 ...)
• Māku e tuhi te ono tekau hēneti (60c). (I’ll write down 60 cents.)
• E hia ngā kapa tekau hēneti kei roto i te ono tekau hēneti? (How many 10 cent coins are there in 60 cents?)
• He aha tēnei kapa? He rima tekau hēneti. (What is this coin? A 50 cent.)
• E hia ngā kapa tekau hēneti e rite ana ki te rima tekau hēneti? (How many 10 cents are equal to the 50 cent coin?)