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Which of these is the correct halving and doubling strategy for 8 x 6?
4 x 3
16 x 12
16 x 3
4 x 12
Which of these is the correct halving and doubling strategy for 5 x 16
5 x 32
10 x 16
10 x 8
10 x 32
5 x 100 =
105
50
500
5
8 x 10 =
18
800
80
810
4 x 10 =
40
20
30
50
56 x 100 =
560
156
5600
56
20 x 100 =
120
200
2000
20100
7 x 10 =
71
710
700
70
20 x 30 =
500
600
50
2030
50 x 50 =
5000
2500
25
500
2 x 1000
200
0
2000
20
6 x 1000
60
6000
600
6
5 x 1000
4000
500
6000
5000
Which of these animals is the cutest?
Puppies!
Baby Elephant
Piglet
Panda
Which fact would you use to estimate 23 x 18?
20 x 20
10 x 20
23 x 18
20 x 30
Which fact would you use to estimate 58 x 34?
34 x 58
30 x 60
30 x 30
60 x 60
