This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: All of the following could be examples of invented strategies for obtaining the sum of two-digit ... (Read 117 times)

SAVANNAHHOOPER23

  • Hero Member
  • *****
  • Posts: 542
on: Feb 18, 2021
All of the following could be examples of invented strategies for obtaining the sum of two-digit numbers EXCEPT:
◦ Adding on tens and then ones (For example, to solve 24 + 35, think 24 + 30 = 54 and 5 more makes 59.)
◦ Using nicer numbers to estimate (For example, to solve 24 + 47, think 24 is close to 25 and 47 is closer to 45 so 24 + 47 = 25 + 45 = 70.)
◦ Moving some to make 10 (For example, to solve 24 + 35, move 6 from 35 to make 24 + 6 and then add 30 to the remaining 29.)
◦ Adding tens and adding ones then combining (For example, to solve 24 + 35, think 20 + 30 = 50 and 4 + 5 = 9 so 50 + 9 = 59.)
Elementary and Middle School Mathematics: Teaching Developmentally ¦ Van de Walle, Karp, Bay-Williams ¦ 10th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by SAVANNAHHOOPER23 on Feb 18, 2021

gasdhashg

  • Sr. Member
  • ****
  • Posts: 335
Reply #1 on: Feb 18, 2021
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 25% of students answer this correctly


SAVANNAHHOOPER23

  • Member
  • Posts: 542
Reply 2 on: Feb 18, 2021
Thanks for the timely response, appreciate it

sarah_brady415

  • Member
  • Posts: 328
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Did you know?

Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Did you know?

Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

Examples of behavioural mechanisms by which animals cope with extreme temperatures. Examples of behavioural mechanisms by which animals cope with extreme temperatures.
Examples of Endocrine Disorders Associated with Hyper- and Hyposecretion Examples of Endocrine Disorders Associated with Hyper- and Hyposecretion
Examples of Generic Drugs Contained in Brand-Name Products Examples of Generic Drugs Contained in Brand-Name Products
Examples of keloids. Examples of keloids.
Reproductive Strategies Reproductive Strategies
Examples of Tablets Examples of Tablets
Video: Griffith's experiments

For a complete list of videos, visit our video library