Unit 1-Number Relationships Building Block 1 and 2

Unit 1-Number Relationships Building Block 1 and 2

Expanded Notation

There are two forms to represent expanded notation:

1) Decimal form

2) Fraction form

Expanded Notation in Decimal Form

5.281

(5 x 1) + (2 x 0.1) + (8 x 0.01) + (1 x 0.001)

Expanded Notation in Fraction Form

5.281

(5 x 1) + (2 x  $\frac{1}{10}$  ) + (8 x  $\frac{1}{100}$  ) + (1 x  $\frac{1}{1000}$  )

Multiple Choice

Choose the fraction form of the expanded notation for 6.438

• (6 x 1) + (4 x $\frac{1}{100}$ ) + ( 3 x $\frac{1}{10}$ ) + (8 x $\frac{1}{1000}$ )

• (6 x 1) + (4 x $\frac{1}{1}$ ) + ( 3 x $\frac{1}{100}$ ) + (8 x $\frac{1}{1000}$ )

• (6 x 1) + (4 x

  $\frac{1}{10}$ ) + ( 3 x $\frac{1}{100}$ ) + (8 x $\frac{1}{1000}$ )

• (6 x 1) + (4 x $\frac{1}{10}$ ) + ( 3 x $\frac{1}{10}$ ) + (8 x $\frac{1}{10}$ )

Open Ended

Elijah ordered the following numbers from least to greatest.

16.583, 16.7, 16.498, 16.303, 16.92

Do you agree or disagree? Why or why not?

Read and solve.

Jaxson drew a line that is 15.6 cm long. Owen drew a line that is 29.8 cm. Estimate the length if the two lines were to be combined.

What is the sum of both lines combined?

Poll

Flori has $3,982 in her bank account. Today, she makes a deposit of $1,643.What is her new account balance?

Is this an addition situation or a subtraction situation?

• Addition

• Subtraction

• Neither

Multiple Choice

Ella has $25.72 in her wallet. She bought two cokes, each coke cost $1.25. She also purchased a Hershey chocolate bar for $2.05. How much money does she have leftover after her purchase?

• $20.18

• $21.17

• $22.52

• $21.20

Fractions

If we combine both amounts, what would be the sum?

Fractions

If we subtract both amounts, what is leftover?