Topic 1. Numbers to 100

Find the missing numbers

1 2 -- 4 5

• 1

• 2

• 3

• 4

I am 10 and 6 ones. Who am I?

• 13

• 14

• 15

• 16

If you have 9 crayons in your box, how many more do you need to get 19?

• 9

• 10

• 11

• 12

Count by ten and write the number.

• 7 tens
  sixty

• 6 tens

  sixty

• 7 tens

  seventy

• 6 tens

  seventy

According to the picture, write the number as 10 and some ones

• 10 and 8 ones

• 10 and 7 ones

• 10 and 9 ones

• 10 and 6 ones

How many stars are there in the picture?

• 3

• 4

• 5

• 6

Andrew has 15 candies. He gives away 4 candies. How many candies are left?

• 10

• 9

• 8

• 11

20 equals to

• 2 tens and 0 ones

• 1 ten and 2 ones

• 1 ten and 9 ones

• 1 tens and 6 ones

Choose the right answer.

• 2 tens = 21

• 20 ones = 21

• 10 and 5 ones = 13

• 6 tens = 60

What is the meaning of "estimate"

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