Ages 7–8🧮 Mathematics10 verified questions on this shelf

Mentally adding hundreds to 3-digit numbers

Mentally add and subtract a three-digit number and hundreds

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Question 1 of 3

A charity collected 762 canned goods. If they send 400 cans to another shelter, how many cans are left?

Question 2 of 3

A school bus can hold 527 students. After adding seats for 300 more students, how many students can it hold now?

Question 3 of 3

A bakery made 276 cupcakes. If they bake 300 more cupcakes, how many cupcakes will they have in total?

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A free account keeps practising Mentally adding hundreds to 3-digit numbers with 10 verified questions, tracks the Skill as it blooms, and connects a real teacher when you want one. Every student account needs a parent's email first.

Skill names and descriptions include the Marble Skill Taxonomy © Generative Spark, Inc. (withmarble.com), licensed under ODbL 1.0 (database) and CC BY-SA 4.0 (content). Practice questions are GlowGrades's own, each checked by independent verifiers that must agree before a child ever sees it.