Unit 3 – Addition and subtraction
2 We can find other addition and subtraction facts for 100.
6 tens + 3 tens = 9 tens 5 ones + 5 ones = 1 ten
65 + 35 = 100 100 − 35 = 65
1 Write the matching addition and subtraction facts. (a) tens + tens =
tens
+
=
tens −
tens =
tens
−
=
(b)
tens +
tens =
tens
+
=
tens −
tens =
tens
−
=
(c)
tens +
tens =
tens
+
=
tens −
tens =
tens
−
=
35
9781380050687__text.indb 35
03/05/2022 10:18
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