Page 10 - 新思维数学活动用书3 样章

1.1 Hundreds, tens and ones

7 Draw beads on each abacus to represent each 3-digit number.

3 0 0

7 0 5
100s 10s 1s

7 0 0

9 0
7
100s 10s 1s

8 Which 3-digit number is represented on each abacus? Write each

number in words.

100s 10s 1s

100s 10s 1s

9 Write this 3-digit number in words.

100 200 300 400 500 600 700 800 900

10 20 30 40 50 60 70 80 90

1 2 3 4 5 6 7 8 9

9