1 / 6

Subtraction When you subtract you always begin with the ones place and move left! 345 -231

Subtraction When you subtract you always begin with the ones place and move left! 345 -231 114 Subtraction with regrouping We have to regroup when we cannot subtract the numbers in a specific place (hint- if the top number is SMALLER than the bottom you have to regroup). 343

verdi
Download Presentation

Subtraction When you subtract you always begin with the ones place and move left! 345 -231

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Subtraction • When you subtract you always begin with the ones place and move left! • 345 • -231 • 114 • Subtraction with regrouping • We have to regroup when we cannot subtract the numbers in a specific place (hint- if the top number is SMALLER than the bottom you have to regroup). • 343 • -236 • When you regroup you are taking 1 from the neighbor and giving 10 to the place you cannot subtract. • 3 4 3 • -2 3 6 • Then you stop and subtract the ones place. • Now it is time to subtract the tens place- check it to see if you can!!!! • 3 4 3 • -2 3 6 • 1 0 7 • REGROUPING!!! • Sometimes you have to regroup more than one time! Always follow these steps when you regroup: • Step 1: Ask yourself “can I subtract this?” if you can’t you need to regroup. • Step 2: Time to regroup! ALWAYS take from your neighbor first! • Take 1 and give 10!!! • This means the neighbor goes down by 1 and you add a tens place to the number that you can’t subtract. • Step 3: REPEAT!! Move to the next place and do steps 1 and 2 over again!! Start here! Yikes I can’t subtract that! Estimation and Subtraction When do I estimate? In subtraction word problems there is a word that tells you when to estimate (round). That word is ABOUT. Estimating is suppose to make it faster for you to solve the problem. The first thing you have to do is round both numbers to the largest place. Then you subtract the two numbers that you rounded. EX.) 345 ---- 300 -123---- -100 200 3 13 Take 1 from the tens place and give 10 to the ones place 3 13 Can I subtract the tens place….YES!! No regrouping this time!

  2. Subtracting multi-digit numbers with and without regrouping Directions: Find the difference. 1.) 6,948 - 7,145 2.) $5.75 - $2.24 3.) 7,714 - 3,226 4.) 4,526 - 2,313 5.) 3,328 - 1,265 6.) $11.52 - $11.35 7.) 8,436 - 4,199 8.) 733 - 557 Directions: Write the correct answer. 10.) Cindy earned $6.25 babysitting. Marsha earned $4.76 washing dishes. How much more money did Cindy earn than Marsha? 9.) Jenniehas 354 pencils. Miguelhas 189 pencils. How many more pencils does Jennie have than Miguel? 12.) Mr. Phillips had 3,634 hamburgers. He gave 246 hamburgers to Mr. Aaron. How many hamburgers does Mr. Phillips have left? 11.) Ms. D’Angelo has 1,743 M&M’s. She gave 269 to Mr. Aaron. How many M&M’s does she have left?

  3. Subtracting multi-digit numbers with and without regrouping Directions: Find the difference. 1.) 4,382 - 3,851 2.) $50.23 - $17.72 3.) 6,512 - 2,345 4.) 7,180 - 5,965 5.) $67.24 - $28.48 6.) 2,321 - 1,784 Directions: Write the correct answer. 8.) Greg earned $38.67 on Monday. He earned $22.98 on Friday. How much more money did Greg earn on Monday than on Friday? 7.) Khiryjumped 2,345 feet. Hunterjumped 1,497 feet. How much fartherdid Khiry jump than Peter? 10.) Bobby bought 3,145 tickets at the fair. He gave 1,549 tickets to Greg. How many tickets does Bobby have left? 19) Ms. D’Angelo has 4,836 tickets . She gave 2,919 to her students. How many tickets does she have left?

  4. Subtracting multi-digit numbers with and without regrouping Directions: Find the difference. 1.) 306 - 158 2.) $6.00 - $2.86 3.) 7,050 - 2,345 5.) $80.00 - $54.97 4.) 2,005 - 1,965 6.) 8,000 - 1,562 Directions: Write the correct answer. 8.) Mr. Wayne had $40.00. He bought two hamburgers and two fries for $8.76. How much money does Mr. Wayne have left to spend tomorrow at McDonalds? 7.) Terrienjumped 700 inches. Latoya jumped 387 inches. How much longer did Terrienjump than Latoya? 10.) Loganhas a sticker collection with 9,000 stickers. He gave 3,645 stickers to his brother Peter. How many stickers does Loganhave left? 19) Mrs. Brantley had $4.03. She bought a soda for $1.89. How much change will Mrs. Brantley get back?

  5. Subtracting multi-digit numbers with and without regrouping Directions: Estimate to find the difference. 1.) 727 - 154 2.) $5.84 - $3.25 3.) 6,467 - 3,378 4.) 8,574 - 1,941 5.) $28.33 - $14.67 6.) 9,213 - 1,924 Directions: Write the correct answer. 8.) Benhad $25.89. He bought a new game for $22.99. About how much money does Ben have left to spend? 7.) Cindy ran 489 yards. Jan ran 167 yards. About how much farther did Cindy run than Jan? 10.) Marsha has a stamp collection with 5,915 stamps. She sold 2,461 stamps to a friend. About how many stamps does Marsha have left? 19) Ms. D’Angelo had $6.31. She bought a dozen cookies for $3.76. About how much change will Ms. D’Angelo get back?

More Related