1. Counting
1.1 Counting in 4s, 8s, 50s and 100s
Complete the following sequences:
a) ___ 8 12 16 20 ___
b) 64 56 40 ___ 24 ___
c) ___ 100 150 200 ___ 300
d) 900 ___ ___ 600 500 400
e) 56 ___ 64 68 ___ 76
f) ___ 64 56 ___ 40 32
g) 350 400 ___ 500 ___ 600
h) 1100 ___ ___ 800 700 600
i) ___ ___ 84 80 76 72
j) 80 ___ ___ 88 112 120
Continue the following sequences:
k) 4 8 12 ___ ___ ___ ___ ___
l) 8 16 24 ___ ___ ___ ___ ___
m) 50 100 150 ___ ___ ___ ___ ___
n) 100 200 300 ___ ___ ___ ___ ___
o) 80 84 88 ___ ___ ___ ___ ___
p) 1250 1200 1150 ___ ___ ___ ___ ___
q) 144 136 128 ___ ___ ___ ___ ___
r) 1500 1400 1300 ___ ___ ___ ___ ___
s) 124 120 116 ___ ___ ___ ___ ___
1.2 Exercise
1a. Can you fill in the missing numbers in these pieces snipped from number squares? Don’t forget you can have number squares that are bigger than 0-100
Below is an illustration of a number squares:


