STANDARD 1.2

Subtraction: Problem 1

Subtraction: Problem 2

Subtracting with carry-ons: Problem 4

SUBTRACTING DECIMALS

Subtracting with carry-ons: Problem 3

EQUIVALENTDECIMALS

END SHOW

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1.2 Add, subtract, multiply and divide rational numbers and take positive rational numbers to whole-number powers

1.2 Sumar, restar, multiplicar y dividir números racionales y elevar números positivos racionales a potencias de enteros.

GRADE 7: Number Sense

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Sergio received from his dad $2.56 and bought a drink for $1.34.

How much was he left? $2.56

1.34–

=

STANDARD 1.2

22.1$

PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

Peter saved $2.45 and paid his little sister $1.22.

How much did he have after paying to his sister? $2.45

1.22–

=

STANDARD 1.2

32.1$

PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

STANDARD 1.2

110

= .1 = .10

110

1

Equivalent Decimals:

So, one tenth is the same as ten hundredths or .1 and .10 are EQUIVALENT DECIMALS.

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STANDARD 1.2

210

= .2 = .20

210

1

So, 2 tenths are the same as twenty hundredths or .2 and .20 are EQUIVALENT DECIMALS.

Equivalent Decimals:

PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

STANDARD 1.2

310

= .3 = .30

310

1

So, 3 tenths are the same as thirty hundredths or .3 and .30 are EQUIVALENT DECIMALS.

Equivalent Decimals:

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STANDARD 1.2

110

= .1 = .10 210

= .2= .20

<

.1 .2<

110

210

<

.10 .20<

Which one is greater?

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STANDARD 1.2

710

= .7 = .70 410

= .4= .40

>

.7 .4>

710

410

>

.70 .40>

Which one is greater?

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STANDARD 1.2

310

= .3 = .30 510

= .5= .50

<

.3 .5<

310

510

<

.30 .50<

Which one is greater?

PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

A person walked .8 miles to the south and then turned around and walked .48 miles to the North. What was the total distance traveled?

.80.48

–

=

STANDARD 1.2

See that .8 and .80 are equivalent decimals.

PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

A person walked .8 miles to the south and then turned around and walked .48 miles to the North. What was the total distance traveled?

.80.48

–

=

STANDARD 1.2PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

A person walked .8 miles to the south and then turned around and walked .48 miles to the North. What was the total distance traveled?

.80.48

–

=

STANDARD 1.2

7 10

23.

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Sergio received from his dad $2.07 and bought a drink for $1.89.

How much was he left? $2.07

1.89–

=

STANDARD 1.2PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

Sergio received from his dad $2.07 and bought a drink for $1.89.

How much was he left? $2.07

1.89–

=

STANDARD 1.2PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

Sergio received from his dad $2.07 and bought a drink for $1.89.

How much was he left? $2.07

1.89–

=

STANDARD 1.2PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

Sergio received from his dad $2.07 and bought a drink for $1.89.

How much was he left? $2.07

1.89–

=

STANDARD 1.2PRESENTATION CREATED BY SIMON PEREZ. All rights reserved

Sergio received from his dad $2.07 and bought a drink for $1.89.

How much was he left? $2.07

1.89–

=

81.0$

STANDARD 1.2

1 910

PRESENTATION CREATED BY SIMON PEREZ. All rights reserved