Multi-Digit Add & Subtract Quiz

Froggy Jumps

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Fluently add/subtract large numbers

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Aliyah Singleton

United States

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1	Aliyah Singleton August 16, 2026	% 94	03:39
2	Anonymous August 28, 2026	% 88	03:34
3	Becky August 28, 2026	% 81	05:14

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Multi-Digit Add & Subtract Quiz


Froggy Jumps Multi-Digit Add & Subtract QuizOnline version Fluently add/subtract large numbers by Aliyah Singleton 1 Why is it important to line up digits by place value when adding or subtracting? a So the numbers look neat b So we don't have to regroup c So we add or subtract digits with the same place value 2 Why is regrouping sometimes necessary when adding or subtracting? a To keep the place values correct when a digit is too large or too small for its place b To make the numbers look different c To change the operation 3 What is the standard algorithm? a A way to estimate numbers b step-by-step method for solving a problem using place value c A way to compare fractions 4 What does the word “regroup” mean when adding or subtracting? a Moving a value to another place-value position b Changing the numbers c Estimating the answer 5 What is 345,210 + 12,795? a 358,005 b 360,005 c 357,005 6 Subtract 87,920 from 614,300. What is the result? a 526,280 b 526,480 c 526,380 7 Add 999,999 and 1. What is the sum? a 999,000 b 1,000,999 c 1,000,000 8 Calculate 124,650 + 75,350. a 210,000 b 200,000 c 199,000 9 What is 500,000 − 278,499? a 221,501 b 221,499 c 222,501 10 Find the sum: 432,210 + 567,790. a 999,999 b 1,000,000 c 1,001,000 11 Subtract 123,456 from 1,000,000. a 876,544 b 877,544 c 876,356 12 Add 6,400 to 89,760. a 96,260 b 95,760 c 96,160 13 What is 250,000 + 749,999? a 999,000 b 1,000,000 c 999,999 14 Compute 1,234,567 − 234,560. a 1,000,007 b 1,000,000 c 1,000,567 15 Use partial sums to find 3,245 + 2,132. What is the correct first step? a Add 3,000 + 2,000, then 200 + 100, then 40 + 30, then 5 + 2. b Add only 245 + 132. Then 3,000 and 2,000 c Round both numbers first. 16 Which shows a correct way to use partial differences to solve 5,678 − 2,345? a (5,000 − 2,000) + (600 − 300) + (70 − 40) + (8 − 5) b 5,000 − 2,345 c 5,000 + 2,000 + 600 + 300

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Multi-Digit Add & Subtract Quiz

Froggy Jumps

About this activity

Created by

Download the paper version to play

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Multi-Digit Add & Subtract QuizOnline version

by Aliyah Singleton

Why is it important to line up digits by place value when adding or subtracting?

Why is regrouping sometimes necessary when adding or subtracting?

What is the standard algorithm?

What does the word “regroup” mean when adding or subtracting?

What is 345,210 + 12,795?

Subtract 87,920 from 614,300. What is the result?

Add 999,999 and 1. What is the sum?

Calculate 124,650 + 75,350.

What is 500,000 − 278,499?

Find the sum: 432,210 + 567,790.

Subtract 123,456 from 1,000,000.

Add 6,400 to 89,760.

What is 250,000 + 749,999?

Compute 1,234,567 − 234,560.

Use partial sums to find 3,245 + 2,132. What is the correct first step?

Which shows a correct way to use partial differences to solve 5,678 − 2,345?