Number Sense 4-5 Week 1

Fractions

100

1/2 + 2/2 =

What is 

3/2 or

1 1/2

1.5

200

7/8 - 3/8 =

What is 

4/8 or

1/2 or

.5

300

3/4 * 4/4 = 

What is

12/4 simplified to

3

400

5 1/3 + 2 1/2 = 

What is 

7 5/6

500

7/9 - 1/9 =

What is

6/9 simplified to:

2/3

Multiplication

100

13 xx 8

What is 104?

200

( 5 xx 1 0 ) + ( 7 xx 1 ) + ( 8 xx 1 0 0 ) =

What is 857?

300

40 xx 900 = 

What is 36000?

400

43 xx 11 = 

What is 473?

500

Estimate: 396 xx 299 = 

120000

x^2

100

1²

What is 1?

200

3²

What is 9?

300

5²

What is 25?

400

7²

What is 49?

500

11²

What is 121?

√

100

sqrt 4

2

200

sqrt 16

What is 4?

300

sqrt 36

What is 6?

400

sqrt 64

What is 8?

500

sqrt 144

What is 12?

Decimals

100

1.5 + 3.76 = 

What is 5.26?

200

0.6 xx 1.5 =

What is .9?

300

1.25 ÷ 0.05 =

What is 25?

400

Estimate: 

4.9 xx 8.1 = 

What is 40?

500

If 4 limes cost $1.52, how much will a dozen limes cost?

What is $4.56?