119

Number patterns: threes up to 1 000

Term 4

Let us count in threes from 803 to 899.

What patterns do the circled and shaded numbers show us?

Circled in orange: Counting in .
Write down the pattern:
Circled in green: Counting in .
Write down the pattern:

a. 873 + 3 + 3 + 3 = b. 824 – 3 – 3 – 3 = c. 841 + 3 + 3 =
d. 837 – 3 – 3 – 3 – 3 = e. 889 + 3 = f. 846 – 3 – 3 =
g. 802 + 3 + 3 + 2 = h. 819 – 3 = i. 880 – 3 – 3 – 3 =
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Number board 901 to 1 000

901 903 904 905 907 908 909
912 913 915 916 918 919
921 922 924 925 927 928 930
931 933 934 936 937 939 940
942 943 945 946 948 949
951 952 954 955 957 958 960
961 963 964 966 967 960 970
972 973 975 976 978 979
981 982 984 985 987 988 990
991 993 994 996 997 990 1000

Fill in the missing numbers.
Colour the missing number blocks green. Colour the white blocks with numbers in them red. What pattern do you see?

Complete the patterns.

a. Add 4 threes to 981. 984, 987, 990, 993
b. Add 5 threes to 973.
c. Subtract 4 threes from 975.
d. Subtract 3 threes from 947.
e. Add 2 threes to 932.
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