Year 1 Maths 6.1.21

Place Value

Say 1 more and 1 less than a 2-digit number

Starter Count to 100 using a 1-100 grid

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1

Year 1

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2

Year 1

Place Value

Say 1 more and 1 less than a 2-digit number

Objectives Wednesday Find one more and one less than any 2-digit number.

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3

Year 1

Day 1: Find one more and one less than any 2-digit number.

Count Count on on in in tens tens from from zero. zero.

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4

Year 1

Day 1: Find one more and one less than any 2-digit number.

What Count number on Count on in in ones was came from before after 30 ones from 30 to 40?

45. to 45.

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5

Year 1

Day 1: Find one more and one less than any 2-digit number.

Count from What on number comes Count on in in ones ones from 50 65. after before 60?

50 to to 60?

65.

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Year 1

Day 1: Find one more and one less than any 2-digit number.

Count Count on on in in What What came came ones ones from from 80 80 before after 90? before90?

90? to to 95.

95.

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Year 1

Day 1: Find one more and one less than any 2-digit number.

0

10

20

30

40

45 46

46 is one more than 45.

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If I slide one more How across many beads bead to join am I showing? them, how many will there be?

45 46

Year 1

Day 1: Find one more and one less than any 2-digit number.

0

10

20

30

40

44 45

44 is one less than 45.

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9

If I put one bead back, how many will I be showing then?

44

Year 1

Day 1: Find one more and one less than any 2-digit number.

3638

37

What comeshave Which number Which number have II before 37? on aftera drawn tag drawn a37? tag on ??

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10

37 36 38

Year 1

Day 1: Find one more and one less than any 2-digit number.

48

53

Now Whatpoint comes to 48 on Can you mark the before line.53?

53 on the line What What comes comesbefore with a tag? and after after?

53?

Look Look at at the the numbers numbers on on the the grid. grid.

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Year 1

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Year 1