E – WN – OE1

Use an open number line to place three large whole numbers. Two of the whole numbers are much smaller than the other whole number.

E – WN – OE2

Use an open number line to place three whole numbers. All three whole numbers are quite difference.

E – SE – OE4

Create an equation in which the unknown number is between 12 and 16.

E – SE – OE5

Create an equation in which the unknown number is between 18 and 22.

E – SE – OE6

Create an equation in which the unknown number is large.

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