1Question

Get 1Q Pro with access to all premium features FREE. Find out more!

Estimate Products micro-lesson

Do you struggle with balancing your kids’ screen time with their education? Say hello to 1Question, the app that solves this problem with a fun twist! Our app lets your child earn screen time minutes in their favourite apps by watching educational videos and correctly answering quiz questions. And the best part? You get to decide which apps to lock behind learning using 1Question. 

Learning time​

Kids learn by watching short, engaging video lessons.

When you multiply 2 numbers, sometimes you don't want an exact answer. You want an estimate. Let's say we have 92 marbles in each jar, and we have 6 jars, and we want to know approximately how many marbles we have altogether. So, we can round 92 to 90, 9 x 6 which is 54 and tack on our zero. So, our estimate is 540 marbles. Using an area model to multiply 92 x 6, we came out to 552 which is very close to our estimate of 540. So that's a reasonable answer. Let's try estimating 23 x 17. We can round 23 to 20 and 17 also to 20. Use your facts, 2 x 2 which is 4 and tack on two zeros. Multiply 23 x 17 and we come out with 391 which is very close to our estimate of 400. We've used compatible numbers; those are numbers easily multiplied in your head. Use compatible numbers when you want to estimate your products.

Examples of 1Question Maths Questions

Answer time

Kids earn more screen time by answering fun educational questions.

Here are some example of questions about this video that kids may be asked in the 1Question app to earn screen time.

  • Estimate the product 3 x 89.

    1) 270
    2) 240
    3) 27
    4) 2700
  • What is the best estimate for 76 x 4?

    1) 320
    2) 280
    3) 3200
    4) 764
  • What is the best estimate for 12 x 37?

    1) 400
    2) 300
    3) 500
    4) 40
  • Estimate the product of 32 x 9 by rounding 32 to the nearest ten.

    1) 270
    2) 300
    3) 290
    4) 310
  • Estimate the product of 491 x 7 by rounding 491 to the nearest hundred.

    1) 3500
    2) 350
    3) 2800
    4) 280
  • Round your factors to find the best estimate for 28 x 17.

    1) 600
    2) 500
    3) 700
    4) 800
  • What is the best estimate for 92 x 6?

    1) 540
    2) 600
    3) 450
    4) 90
  • Use compatible numbers to estimate 38 x 17.

    1) 800
    2) 900
    3) 700
    4) 1000
  • What is the estimate for 19 x 48 if you round both factors to the nearest ten?

    1) 1000
    2) 950
    3) 400
    4) 900
  • Estimate the product of 657 x 2 by rounding 657 to the nearest hundred.

    1) 1400
    2) 1314
    3) 1300
    4) 1200
  • What is the best estimate for 28 x 82?

    1) 2400
    2) 1600
    3) 24000
    4) 160
  • What is the best estimate for 8,032 x 3?

    1) 24000
    2) 2400
    3) 240
    4) 32000
  • What is the best estimate for 46 x 97?

    1) 5000
    2) 4600
    3) 6000
    4) 4000
  • Round 7,928 to the nearest thousand, then multiply it by 8 to find the estimated product for 7,928 x 8.

    1) 64000
    2) 6400
    3) 56000
    4) 1600
  • What is the closest estimate for 71 x 92?

    1) 6300
    2) 7200
    3) 5600
    4) 7000
  • What is the best estimate for 57 x 38?

    1) 2400
    2) 24000
    3) 240
    4) 1500
  • Which fact can help you solve 20 x 20?

    1) 2 x 2
    2) 2 x 10
    3) 4 x 4
    4) 2 x 40
  • When you estimate 23 x 17, to what should you round each factor?

    1) 23 to 20 and 17 to 20
    2) 23 to 30 and 17 to 20
    3) 23 to 20 and 17 to 10
    4) 23 to 30 and 17 to 10
  • What are two closest compatible numbers for the factors 46 and 97?

    1) 50 and 100
    2) 40 and 100
    3) 50 and 90
    4) 40 and 90
  • What are compatible numbers?

    1) Numbers close to your factors that you can easily multiply mentally.
    2) All numbers that have a zero.
    3) Numbers a little larger than your factors.
    4) Numbers you have rounded down.
  • Connor says 420 is a good estimate for 7 x 63. Is he correct?

    1) Yes
    2) No
  • Amy multiplied 56 x 32 and got an answer of 17,920. Is this a reasonable answer?

    1) No
    2) Yes
  • Kara says 63,000 is a good estimate for 71 x 92. Is she correct?

    1) No
    2) Yes
  • One reason you might want to find an estimate instead of finding the exact answer is to see if your answer is reasonable.

    1) TRUE
    2) FALSE
  • The actual answer for 7 x 42 will be between 280 and 350.

    1) TRUE
    2) FALSE

Recreational screen time

Kids can use the screen time minutes they earned to unlock the apps selected by their parent e.g. games, social media, streaming, etc.

Out of time

When screen time minutes run out, kids are locked out and need to complete more learning in 1Question to earn more time.

Meet your educator

Our micro-courses are developed and delivered by qualified educators from around the world.

Chris Lindsey

Chris Lindsey

More lessons from the Master Multiplication micro-course

Factors are the numbers you multiply together to find a product. Every number has at…

Area models are a great way to solve multiplication problems. With larger numbers, you’re going…

Did you know that you can find multiples by using skip counting? If you skip…

When you multiply two digits by two digits, you might want to try the partial…

When you multiply with multiples of 10, remember, it’s all about the facts. For example,…

When solving multiplication word problems, here’s a few strategies you can use. Sal earns $12…

What’s the difference between prime and composite numbers? Here is a list of the first…

When we talk about the area of a rectangle, we’re talking about measuring the space…

Sometimes when you’re doing word problems, they require more than one step. Two classes of…

If you want to multiply with 2- or 3-digit numbers, you should use area models….

Sometimes numbers follow a pattern and we need to figure out what the rule is…