Lesson details

Key learning points

  1. In this lesson, we will build on prior learning to develop a range of strategies to efficiently add and subtract within one problem.

Licence

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4 Questions

Q1.
I subtract 612, then take away a further 111. I add 904. My answer is 1187. What was my number?
1000
Correct answer: 1006
576
789
Q2.
I subtract 9314. I then add 72,097. I subtract 32,982. My answer is 168,373. What was my number?
129,843
137,874
Correct answer: 138,572
140,655
Q3.
I add 3.62, then subtract 9.4. I then add 12.45. My answer is 16.17. What was my number?
11.2
8.4
9.3
Correct answer: 9.5
Q4.
The sum of three consecutive numbers is odd.
Always
Never
Correct answer: Sometimes

Lesson appears in

UnitMaths / Integers & Decimals