Operations with Decimals

0.87 + 6.12

• 6.99

• 10.25

• 6.989

• 9.66

Tags

CCSS.5.NBT.B.7

5.8 + 4.289

• 9.284

• 10.089

• 21.55

• 8.752

Tags

CCSS.6.NS.B.3

43.68 - 40.67

• 3.01

• 3.1

• 30.1

• 3.11

Tags

CCSS.6.NS.B.3

15 - 2.75

• 13.75

• 12.75

• 12.25

• 11.25

Tags

CCSS.5.NBT.B.7

 $1.2\ \times2.1$  

• 252

• 25.2

• 2.52

• 0.252

Tags

CCSS.6.NS.B.3

2.3 × 1.21

• 0.2783

• 2.783

• 27.83

• 278.3

Tags

CCSS.6.NS.B.3

20.72 ÷ 8

• 0.259

• 2.59

• 0.625

• 6.2

Tags

CCSS.5.NBT.B.7

0.105 ÷ 0.5

• 21

• 2.1

• 0.21

• 0.021

Tags

CCSS.5.NBT.B.7

On Tuesday, Mr. Rodriguez bought a new video game system for $345.67. On Friday, the system went on sale for $299.99. How much money could Mr. Rodriguez have saved if he would have bought the system on Friday?

• $44.98
• $154.23
• $645.66
• $45.68

Tags

CCSS.7.EE.B.3

What steps do you NEED to do when adding or subtracting decimals?

• Line up the decimal

• Fill in empty spots with zeros

• Bring the decimal STRAIGHT down

• multiply

Tags

CCSS.5.NBT.B.7