4*100 + 8*10 + 1
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(-3) -8- (-7)=
bye using five or more
Use 1374 hundred blocks = 137400 Two ten blocks = 20 Nine one blocks = 9 Total = 137429.
Using a variety of different methods to reinforce understanding. So, in early maths, you can use an abacus, along with plastic blocks and cards to show children how to add and subtract.
ten hundred, 45 ten blocks five one block