The Number 100
The greatest 1-digit number is 9 The greatest 2-digit number is 99
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The smallest 1-digit number is 0 The smallest 2-digit number is 10
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If we add 1 to the greatest number, we get the smallest
number of the next series of numbers.
So, if we add 1 to 99, we get 99 + 4 = 100.
We read 100 as one hundred.
Let us form 100 with blocks of ones and tens.
Count and write.
_____ tens make __________
_____ tens and _____ ones = __________
Counts in Hundreds:
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In subtracting 1-digit number we will subtract or minus one-digit number from one-digit number or one-digit number from 2-digit number and find the difference between them. We know that subtraction means to take away a set of objects from a collection.
Here we will learn adding 2-digit numbers without regrouping and start working with easy numbers to get acquainted with the addition of two numbers.
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How to divide on a number line? Learn to divide using number line to find the quotient. Solved examples to show divide on a number line: 1. Solve 14 ÷ 7 Solution: 7 is subtracted repeatedly
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In 2nd grade addition worksheet we will solve the problems on addition of 2-digit numbers (without Regrouping), addition by regrouping, regrouping tens to hundreds, estimating the sum and word problems on addition.
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First Grade Math Activities
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