Singapore Math Level 3A & 3B – Review 3: Multiplying Numbers by 6 to 9 - 20 Questions
REVIEW 3: MULTIPLYING NUMBERS
Let's solve the following questions and learn about multiplying numbers. We have covered this topic in two previous lessons, and this is a review. There are a total of 23 questions. Let's begin.
Q(1-2): Look at the pictures carefully and then make 2 multiplication and division sentences.
1.
Solution(1):
5×8=40
8×5=40
40÷5=8
40÷8=5
2.
Solution(2):
7×4=28
4×7=28
28÷7=4
28÷4=7
Q(3-6): Solve the following multiplication problems. Show your work.
× 8
--------
4. 312
× 3
--------
5. 632
× 4
--------
6. 500
× 3
--------
Solution..(3-6):
3. 31547
× 8
--------
4. 312
× 3
--------
936
5. 1632
× 4
---------
2528
6. 500
× 3
------------
1500
7. Study the pictures carefully and Fill in each blank with numbers.
⛾⛾⛾⛾⛾⛾⛾⛾⛾
⛾⛾⛾⛾⛾⛾⛾⛾⛾
⛾⛾⛾⛾⛾⛾⛾⛾⛾
⛾⛾⛾⛾⛾⛾⛾⛾⛾
There are……..groups of mugs.
There are……...mugs in each group.
There are……...mugs altogether.
Solution7:
There are 5 groups of mugs.
There are 9 mugs in each group.
There are 45 mugs altogether. [5×9=45]
Q(8-12): Match each balloon to the correct girl.
Solution(8-12):
Each balloon is matched with the correct girl, and the corresponding match calculation is displayed next to it. This calculation is based on multiplying the numbers by factors ranging from 6 to 9, as shown in the figure below.
Q(13-16): Fill in each blank with the correct answer.
13. 9 sixes = …….
14. …….. × 8 = 56
15. 4 × …… = 28
16. ……. × 9 = 63
Solution[13-16]:
13. 9 sixes = 54
[9×6=6+6+6+6+6+6+6+6+6=54]
14. 7× 8 = 56
[7×8=8+8+8+8+8+8+8=56]
15. 4 × 7 = 28
[4×7=7+7+7+7=28]
16. 7 × 9 = 63
[7×9=9+9+9+9+9+9+9=63]
Solve the following word problems. Show your work in the space below.
17. Ava uses 139 beads to make a toy. How many beads does she need to make 8 toy?
Solution(17):
139 × 8 = 1112
[139+139+139+139+139+139+139+139=1112]
× 8
---------------
1112
She needs 1112 beads to make 8 such toys.
18. Maddy has 235 stickers in an album. He has 7 albums in his collection. How many stickers does he have altogether?
Solution(18):
235 × 7 = 1645
[235+235+235+235+235+235+235=1645]
× 7
------------
1645
He has 1645 stickers altogether.
19. Vijay bought 9 packets of water ball beads. If there were 54 water ball beads in all, how many water ball beads were there in each packet?
Solution(19):
54 ÷ 9 = 6
[9+9+9+9+9+9=54]
There were 6 water ball beads in each packet.
20. If a taxi can transport 5 people, how many people can 45 taxis transport?
Solution(20):
45×5=225
[45+45+45+45+45=45]
× 5
------------
225
45 taxis can transport 225 people.
Also: