___________
Maths
Informal and mental strategies for adding and subtracting two 3-digit numbers
Starter quiz
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What number is represented by these place value counters?
10
343 ✓
433
What number is represented by the base ten blocks?
442
10
244 ✓
424
Choose the correct symbol to go between the expressions. 7 + 5 ___ 3 + 4
> ✓
<
=
Choose the correct symbol to go between the expressions. 20 − 3 ___ 12 + 10
>
< ✓
=
Choose the correct symbol to go between these expressions. 34 − 10 ___ 14 + 10
>
<
= ✓
Using you understanding of place value, order these numbers from smallest to greatest.
1
⇔
10
2
⇔
30
3
⇔
31
4
⇔
103
5
⇔
130
6
⇔
301
7
⇔
310
+