The 2 and the 7 are going to get separate columns and you write your 48 down the right-hand side, and then you draw a lattice. This is why it's called lattice multiplication.

Sal introduces lattice multiplication.

In the last video we did a couple of lattice multiplication problems and we saw it was pretty straightforward. You got to do all your multiplication first and then do all of your addition.

In this topic, we will multiply and divide whole numbers. The topic starts with 1-digit multiplication and division and goes through multi-digit problems. We will cover regrouping, remainders, and word …

Draw your lattice, making sure to put the decimal in the correct place for each number. To figure out where the decimal belongs in your answer, put your fingers on each decimal in the numbers you …

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In the last video we did a couple of lattice multiplication problems and we saw it was pretty straightforward. You got to do all your multiplication first and then do all of your addition.

Khan Academy ... Khan Academy

This Arithmetic course is a refresher of place value and operations (addition, subtraction, division, multiplication, and exponents) for whole numbers, fractions, decimals, and integers.

ตัวอย่าง: การแสดงการหารหลายวิธี | Example: Expressing division in multiple ways ทำไมการคูณตาข่ายถึงใช้ได้ | Why lattice multiplication works