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USA
- USA
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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 14 - Jul 19
For Your Every Summer RSVP, with Code: SUMMER15
Description
Math Mammoth Light Blue Series Grade 3-B WorktextThe main areas of study in Math Mammoth Grade 3 are: Students develop an understanding of multiplication and division of whole numbers through problems involving equal sized groups, arrays, and area models. They learn the relationship between multiplication and division, and solve many word problems involving multiplication and division (chapters 2, 3, and 9). They learn the multiplication tables, and learn how to use their knowledge of multiplication
The main areas of study in Math Mammoth Grade 3 are:Students develop an understanding of multiplication and division of whole numbers through problems involving equal-sized groups, arrays, and area models. They learn the relationship between multiplication and division, and solve many word problems involving multiplication and division (chapters 2, 3, and 9). They learn the multiplication tables, and learn how to use their knowledge of multiplication tables to solve basic division facts.
Students develop an understanding of fractions, beginning with unit fractions. They use fractions along with visual fraction models and on a number line. They also compare fractions by using visual fraction models and strategies based on noticing equal numerators or denominators (chapter 10).
Students learn the concepts of area and perimeter. They relate area to multiplication and to addition, recognize perimeter as a linear measure (in contrast with area), and solve problems involving area and perimeter (chapter 7).
Students fluently add and subtract within 1,000, both mentally and in columns (with regrouping). They learn to add and subtract 4-digit numbers, and use addition and subtraction in problem solving (chapters 1 and 6).
Additional topics we study are time (chapter 4), money (chapter 5), measuring (chapter 8), and bar graphs and pictographs (in various chapters).
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4.7 ★★★★★
Based on 340 reviews
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Product Reviews
★★★★★ 5
Highly recommend
Color: Black
I love these so much. They make the perfect stocking stuffer but as a chronically messy person, I love throwing them in my purse or backpack. They pick up so much and are really easy to wash off.
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Reviewed in the United States on March 4, 2026
★★★★★ 4
Clean Your Purse
Color: Pink
This ball is pretty cool. It acts like a lint roller inside your purse getting all the dirt, crumbs, & lint that accumulates at the bottom. When it's looking nasty, you can rinse it off in the sink & it's good to go back in your purse. It's one of my best Amazon purchases and I will probably buy again if/when the sticky wears off or having a spare on hand.
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Reviewed in the United States on June 29, 2025
★★★★★ 5
Value for money
Color: Blue
This definitely is something to have. Used it a lot while travelling and for office use as well. It takes out all the gunk from the bag and is easy to clean as well
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2026
★★★★★ 5
Used for a year.
Color: Black
Had this in a back pack for a year and wow. The dirt collected is kinda shocking. I will buy more of these for different bags!
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Reviewed in the United States on April 21, 2026
★★★★★ 5
Fun little gadget we never knew we needed.
Color: Pink
Who knew keeping our bags and purses could be so easy. Easy to clean once it does it's "job". Doesn't take up much room and works like a charm
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 31, 2026
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