20 x 30 =
500
2030
600
50
20 x 100 =
20100
2000
120
200
56 x 100 =
56
560
156
5600
How would you read 0.100
Zero and One Hundred
Zero and One Hundred Thousandths
One Hundred
One Tenth
5 x 100 =
5
105
500
50
4 x 10 =
20
50
30
40
How would you read 4.402
Forty-Four Hundred Two
Four and Four Hundred Two Thousandths
Four Four and Two Thousandths
Four and Four Hundred Two
What does the 8 represent in the following number? 4850
800
80
8
Which of these animals is the cutest?
Piglet
Baby Elephant
Panda
Puppies!
Which fact would you use to estimate 58 x 34?
60 x 60
30 x 30
30 x 60
34 x 58
What does the 3 represent in the following number? 0.039
0.3
0.030
3
Which fact would you use to estimate 3.22 x 9
3 x 9
3.22 x9
3 x 10
5 x 10
6 x 1000
6000
6
60
600
Which fact would you use to estimate 23 x 18?
10 x 20
20 x 30
20 x 20
23 x 18
Ace uses 10 x 5 to estimate the answer 9.23 x 4. This estimate will be an:
Under-estimate
Over-estimate
If I divide a number by 0.1, then that number should get:
Bigger
Smaller
We can think of division as:
The same as multiplication
Splitting into equal groups
The same as subtraction
Look at the number 6503. The number 3 is in which place value?
Ones
Thousands
Hundreds
Tens
As a single number 400 + 50 + 8 will be:
458
854
400508
40058
What does the 9 represent in the following number? 4.5390
9
9 thousandths
90
0.009
50 x 50 =
25
5000
2500
500
We can think of multiplication as:
The same as division
Groups of something
The same as adding
An area model
As a single number 1000 + 50 will be
5010
1500
100050
1050
If I multiply a number by 0.1, that number should get:
Bigger
Smaller
Tanya uses 7 x 3 to estimate the answer 7 x 3.44. Her estimate will be an:
Over-estimate
Under-estimate
What does the 4 represent in the following number? 4.325
4000
4
400
40
Look at the number 3 071 246. The 7 is in which place value?
Ten Thousands
Thousands
Millions
Hundreds
5 x 1000
5000
6000
4000
500
What is your favourite type of food?
Give me something else!
Pizza
Candy
Hamburgers
When is your next Math test?
Next week
Never!
What? A math test?
Tomorrow (Saturday)
7 x 10 =
71
710
70
700
2 x 1000
200
2000
20
0
As a single number 6 + 0.01 + 0.002 will be:
6.12
6.01002
612
6.012
Look at the number 50.456. The number 6 is in which place value?
Thousandths
Tenths
Thousands
Ones
Which of these is the correct halving and doubling strategy for 8 x 6?
4 x 12
16 x 12
4 x 3
16 x 3
8 x 10 =
810
80
18
800
Cats or dogs?
Cats
Dogs
Which of these is the correct halving and doubling strategy for 5 x 16
10 x 8
10 x 32
5 x 32
10 x 16
What does the 5 represent in the following number? 5 901 020
5000
590 000
5 million
5 000 000
Bob uses 4 x 5 to estimate the answer 4.3 x 5. His estimate will be an:
Over-estimate
Under-estimate