Is Goblins free for teachers?

Yes. Goblins offers a generous free tier that includes 1 live feedback assignment per week, insights on student mastery and replays, and the ability to upload your own content. The Max plan adds unlimited assignments, superadaptive mode, grade exports, standards growth reports, and SSO/LMS integration, with per-student pricing for schools and districts.

How does Goblins work?

Three simple steps: (1) Share an assignment from thousands of standards-aligned topics using a share code. (2) Students speak and draw their thinking naturally, and Goblins responds with Socratic questioning that sounds just like their teacher. (3) Teachers get real-time formative insights showing what students struggle with and suggestions to inform instruction.

Does Goblins prevent cheating?

Yes. Goblins uses a purpose-trained AI model that evaluates cheating signals in real time. It can detect when students are copying answers, using external tools inappropriately, or not genuinely working through problems. Copy-pasting answers is also blocked.

Can I use my own voice with Goblins?

Yes. Teachers can record their voice and take a selfie to create a custom 3D avatar in about 30 seconds. Students then hear help in their own teacher's voice and see a familiar face, making the experience more personal and effective.

What math levels does Goblins cover?

Goblins covers math from Grade 5 through AP Calculus, including thousands of standards-aligned topics. Teachers can also upload their own content for custom assignments at any level.

Is Goblins FERPA compliant?

Yes. Goblins is FERPA and state compliant. Student data privacy and security are a top priority.

Does Goblins support English Language Learners?

Yes. Goblins supports 30+ languages so teachers don't have to translate every worksheet. It is especially helpful for ELL students who need accessible math instruction in their native language.

MA.5.NSO.2.4

Explore the multiplication and division of multi-digit numbers with decimals to the hundredths using estimation, rounding and place value.

Example Problems

Divide:

1.36 \div 1.7 =

Divide:

? = 72 \div 0.8

Divide:

? = 63 \div 0.7

Khan Academy Resources

Multiplying decimals (no standard algorithm)Divide decimals: FAQ Multiply decimals: FAQ Estimating with dividing decimals Multiply whole numbers and decimals less than 1 Represent decimal multiplication with grids and area models Divide whole numbers to get a decimal (2-digit divisors)Multiply decimals tenths Divide decimals by whole numbers Multiply decimals and whole numbers visually Divide whole numbers by decimals Understand multiplying decimals Multiply whole numbers and decimals Estimating with multiplying decimals Divide decimals by whole numbers visually Divide whole numbers to get a decimal (1-digit divisors)Multiply whole numbers by 0.1 and 0.01 Divide whole numbers by decimals visually Multiply decimals (1&2-digit factors)Estimating with multiplying decimals and whole numbers Multiply decimals (up to 4-digit factors)Estimating decimal multiplication Understanding decimal multiplication Multiplying decimals: place value Divide whole numbers with decimal quotients: 78÷12 Dividing a decimal by a whole number on the number line Dividing a decimal by a whole number example Divide whole numbers with decimal quotients: 5÷2 Multiplying decimals using estimation Developing strategies for multiplying decimals Strategies for multiplying decimals and whole numbers Visually dividing a whole number by a decimal Pattern when dividing by tenths and hundredths Estimating decimal division Division strategies for decimal quotients Estimating with multiplying decimals and whole numbers Strategies for multiplying multi-digit decimals by whole numbers Dividing whole numbers by decimals examples Developing strategies for multiplying 2-digit decimals Dividing a decimal by a whole number with fraction models Multiplying decimals and whole numbers with visuals Dividing a whole number by a decimal on a number line

1-on-1 AI tutoring aligned to MA.5.NSO.2.4. Instant help for students, real-time insights for teachers.

Used in classrooms by 100,000+ students at Baltimore County, Plano ISD, Deer Valley USD, KIPP, and districts nationwide.

Free for teachers, forever →