1/2 × 999,999,999 15/4 × 999,999,999 0.67× 999,999,999 5.NF.5 Comparing a number and a product Decide which number is greater without multiplying. 817 235×817 or 99 1/4×99 or 51/100 51/100×301 or 13/90 2/3×13/90 or 101/102 101/102×101/102 or 99/5 99/5×1/2 or 8/21×40 28/21×40 or 8/3×5/7 8/3×9/4 or 5.NF.5 Fundraising Cai, Mark, and Jen were raising money for a school trip. Cai collected times as much as Mark. Mark collected 2/3 as much as Jen. Who collected the most? Who collected the least? Explain. 5.NF.5 Grass Seedlings The students in Raul’s class were growing grass seedlings in different conditions for a science project. He noticed that Pablo’s seedlings were times a tall as his own seedlings. He also saw that Celina’s seedlings were 3/4 as tall as his own. Which of the seedlings shown below must belong to which student? Explain your reasoning. 5.NF.5 Reasoning about Multiplication Your classmate Ellen says, When you multiply by a number, you will always get a bigger answer. Look, I can show you. 9 Start with 5 9×5=45 Multiply by . 45 45>9 The answer is and 45 9 is bigger than
1/2 × 999,999,999 15/4 × 999,999,999 0.67× 999,999,999 5.NF.5 Comparing a number and a product Decide which number is greater without multiplying. 817 or 235×817 99 or 1/4×99 51/100 or 51/100×301 13/90 or 2/3×13/90 101/102 or 101/102×101/102 99/5 or 99/5×1/2 8/21×40 or 28/21×40 8/3×5/7 or 8/3×9/4 5.NF.5 Fundraising Cai, Mark, and Jen were raising money for a school trip. Cai collected times as much as Mark. Mark collected 2/3 as much as Jen. Who collected the most? Who collected the least? Explain. 5.NF.5 Grass Seedlings The students in Raul’s class were growing grass seedlings in different conditions for a science project. He noticed that Pablo’s seedlings were times a tall as his own seedlings. He also saw that Celina’s seedlings were 3/4 as tall as his own. Which of the seedlings shown below must belong to which student? Explain your reasoning. 5.NF.5 Reasoning about Multiplication Your classmate Ellen says, When you multiply by a number, you will always get a bigger answer. Look, I can show you. Start with 9 Multiply by 5 . 9×5=45 The answer is 45 and 45>9 45 is bigger than 9
nbt__nf_tasks.docx