Operations with Decimals

 $3.14\times2.1=?$  

• 6.594

• 5.14

• 6.908

• 6.604

Tags

CCSS.5.NBT.B.7

 $8.22\div0.2$  

• 4.11

• 41.1

• 411

• .411

Tags

CCSS.5.NBT.B.7

 $7.35+2.75$  

• 10.2

• 10.05

• 9.05

• 10.1

Tags

CCSS.5.NBT.B.7

 $5.60\ -\ 3.99$  

• 1.60

• 1.69

• 1.61

• 1.39

Tags

CCSS.5.NBT.A.3

CCSS.5.NBT.B.7

When Multiplying Decimals

• We line up the decimal points

• The decimal points don't need to line up

• We get rid of the decimal point

• We add zeros

Tags

CCSS.5.NBT.A.2

CCSS.5.NBT.B.7

When Adding and Subtracting decimals

• We don't line up the Decimal point

• We line up the decimal point

• We get rid of the decimal points.

• We skip the problem

Tags

CCSS.5.NBT.A.1

CCSS.5.NBT.B.7

When Dividing a number by a decimal we...

• We make the Divisor into a whole number by moving the decimal point to the RIGHT and the decimal to the RIGHT on the inner number.

• Get rid of the decimal by erasing it

• We make the Divisor into a whole number by moving the decimal point to the LEFT and the decimal to the LEFT on the inner number.

• Add zeros to the inner number

Tags

CCSS.5.NBT.A.2

CCSS.5.NBT.B.7

If I make $10.50 an hour and work 4 hours how much do I make? (Hint multiply)

• $42.24

• $42.04

• $40.24

• $42.00

Tags

CCSS.5.NBT.B.5

CCSS.5.NBT.B.7