Page 19 - 新思维数学学生用书1 样章

1 Numbers to 10

Worked example 3

Which number is missing?

1 2 3 4 5 6 8 9 10

1, 2, 3, 4, 5, Once I caught

a fish alive! 6, 7, ... I said 6

then 7, so 7 is the
missing number.
Answer:

1 2 3 4 5 6 7 8 9 10

4 Count to 10. Write the missing numbers.

1 2 4 5 6 7 9 10

1 4 5 6 7 9 10

5 Which numbers have been swapped in this number track?

Write the numbers in the box.

1 2 3 4 8 6 7 5 9 10

18