Bridges Unit 3 Review

Traditional algorithm (with regrouping)

Constant Difference (moving both numbers up/down a number line)

Give and Take (take from one addend to give to the other one to make a friendly number)

1.98

2.34

I don't know

4.22

4.32

4.42

I don't know

Traditional algorithm (with regrouping)

Constant Difference (moving both numbers up/down a number line)

Give and Take (take from one addend to give to the other one to make a friendly number)

6.74

2.04

3.04

4.74

ten and five eight five

ten and five hundred eighty-five thousandths

 $\left(1\times10\right)+\left(5\ \times\frac{1}{10}\right)+\left(8\times\frac{1}{100}\right)+\left(5\times\frac{1}{1000}\right)$  

 $1+0+.+5+8+5$  

$3.250

$30.25

$325

$32.50

$3.2500

$300.25

$325.00

$3250

10

100

1,000

10,000

0.034

0.34

34

3,400

34,000

72,300

7.23

723

I don't know

5

4

3

2

3.5

3.56

3.6

3.66

3.56

3.57

3.566

3.568