3 (a) Count to 30 by threes. Write the numbers that you say.
+3 +3
0
3
30
(b) Count to 90 by nines. Write the numbers that you say.
+9 +9
0
9
90
4 Now complete the multiplication table of 9 up to 10 × 9 and 9 × 10: 1 × 9 = 2 × 9 =
9 × 1 =
9 × 2 =
…
Solve these problems: (a) The cost of a pen is $8. What is the total cost of 6 pens? (b) The mass of a bag of pet food is 9 kg. What is the total mass of 5 bags?
5
66
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04/05/2022 15:50
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