Forty and number families
Answers are for parents and teachers.
1
Count aloud from 1 to 40. Clap on every tenth number.
The child counts in order and claps at 10, 20, 30 and 40.
2
Put these numbers in order, smallest first: 12, 7, 15.
7, 12, 15
3
The family is 2, 3 and 5. Write four sentences, two adding and two taking away.
2 + 3 = 5, 3 + 2 = 5, 5 − 2 = 3, 5 − 3 = 2.
4
Which group has more? Write the two numbers with the sign between them.
9 > 7. The left group has more.
5
Find 8 spoons. Take 3 away. How many are left? Say the take-away sentence.
5 are left. 8 − 3 = 5.