Now let’s add 43 to 155.
5
1
5
5
1
9
8
155 + 43 = 100 + 50 + 5 + 40 + 3 = 100 + 90 + 8 = 198
1 Use blocks or sketch number lines to help complete these additions. (a) 63 + 20 = (b) 63 + 24 = 63 + + =
(c)
163 + 24 = 163 +
+
=
Add 53 to each of these numbers. 34 + 53
2
34 + 53 =
+
+
+
=
+ =
40
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03/05/2022 10:18
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