Unit 1

Sequences

100

6,8, 10, ___, ___

12, 14

200

90, 80, ____, _____

70,60

300

0,5, 10, ___, ____

15, 20

400

66, 63, ___, 57

60

500

30, 40,  ___, 60

50

Odd and even

100

17 + 12 = Odd / even

29 odd

200

24 + 16 = Odd / even

40 Even

300

24 - 13 = Odd/even

11 Odd

400

12-6 = Odd /even

6 Even

500

Odd - odd = ?

even

Counting

100

Count in 10s.

9641, 9631, _______, _______,

9621, 9611

200

Count in 10s.

4663, 4673, _______, _______, 4703

4683, 4693, 4703

300

Count in 100s.

2790, _______,_______,_______, 3190

2890,2990, 3090

400

Count in 1000s.

6543, 5543, _______,_______, 2543

4543, 3543

500

Count in 1000s

1597, 2597, _______,_______,_______, 6597

3597, 4597, 5597

Negative numbers

100

It is -4 degrees outside. The temperature increases by 1. How cold is it outside?

-3

200

It is -4 degrees outside. The temperature rises by 2 degrees. How cold is it outside?

-2

300

It is -4 degrees outside. The temperature falls by 2 degrees. How cold is it outside?

-6

400

How many degrees are there between 2 and -5?

7

500

How many degrees are there between -1 and 2?

3