KS2 SATs Arithmetic: Order of Operations (BODMAS)
Brackets first, then powers, then multiplication and division from left to right, then addition and subtraction from left to right. Momo the monkey works out 6 + 4 × 3 = 18, shows why 24 ÷ 4 × 2 is 12 and not 3, then you work out (8 + 4) × 3 − 6 in a SATs-style question.
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2:27KS2 SATs Arithmetic: Long Division (4-digit ÷ 2-digit)
Bruno the bear works out 1,624 ÷ 14 with long division: write the 14 times table down the side, then divide, multiply, subtract and bring down, one digit at a time, to get 116. Then try 2,592 ÷ 24 yourself and learn the zero trap. A regular KS2 SATs arithmetic paper question.
2:20KS2 SATs Arithmetic: Multiplying Decimals by Whole Numbers
To work out 2.6 × 3, Momo the monkey ignores the decimal point (26 × 3 = 78), then puts it back with the same number of decimal places: 7.8. Learn to check with an estimate, then work out 3.25 × 4 yourself. A favourite KS2 SATs arithmetic paper question.
2:22KS2 SATs Arithmetic: Multiplying and Dividing Fractions by Whole Numbers
To multiply a fraction by a whole number, multiply the numerator: 3/5 × 4 = 12/5 = 2 2/5. To divide a fraction by a whole number, multiply the denominator: 3/4 ÷ 3 = 3/12 = 1/4. Pip the panda shows both with fraction bars, then you work out 2/3 ÷ 4 yourself.