Doubling and Halving

CATEGORY 1

Doubling and Halving with basic facts.

1 x 162 x 84 x 48 x 2

16 x 1

1 x 362 x 184 x 9

1 x 202 x 104 x 5

1 x 242 x 124 x 68 x 3

1 x 482 x 244 x 128 x 6

16 x 3

1 x 402 x 204 x 108 x 5

1 x 122 x 64 x 3

1 x 322 x 164 x 88 x 4

16 x 232 x 1

1 x 562 x 284 x 148 x 7

CATEGORY 2

Doubling and Halving with 1 x 2-digit and 1 x 3-digit numbers.

8 x 164 x 322 x 64

8 x 324 x 64

2 x 168

36 x 518 x 109 x 20

8 x 1254 x 2502 x 500

84 x 542 x 1021 x 20

35 x 870 x 4

140 x 2

125 x 8250 x 4500 x 2

345 x 8690 x 4

1380 x 2

8 x 294 x 58

2 x 116

CATEGORY 3

Doubling and Halving with 2 x 2-digit numbers.

3 x 606 x 30

12 x 15

9 x 5618 x 2836 x 14

2 x 2804 x 1408 x 70

16 x 35

104 x 352 x 6

26 x 12

4 x 1208 x 60

32 x 15

100 x 450 x 8

25 x 16

112 x 256 x 428 x 8

14 x 16

360 x 3180 x 690 x 1245 x 24

2 x 14404 x 7208 x 360

16 x 18032 x 9064 x 45

CATEGORY 4

For investigation of what happens when you third or triple or quarter and quadruple numbers.

9 x 123 x 36

1 x 108

27 x 159 x 45

3 x 1351 x 405

36 x 1872 x 9

216 x 3648 x 1

15 x 1660 x 4

240 x 1

25 x 48100 x 12400 x 3

1200 x 1

64 x 3516 x 1404 x 560

1 x 2240

18 x 129 x 24

4.5 x 362.25 x 72

6 x 123 x 24

1.5 x 48

6 x 243 x 48

1.5 x 96