1. Magada had 240 silkos and each moth laid 50 eggs, so we need to multiply 240 by 50.
Number sentence: 240 × 50 = 12,000
Magada will have 12,000 silkos.
2. Mr Mlangu saved R2189 in January and R3015 in February. To find out how much he still needs to save, we need to subtract the amount he saved from his target amount.
Number sentence: R1200 - (R2189 + R3015) = R1200 - R5204
Number sentence: R1200 - R5204 = -R4004
Mr Mlangu still needs R4004 to meet his target.
3. Last year 1234 people took part in the marathon. This year the expected figure is ten times last year.
Number sentence: 1234 × 10 = 12,340
12,340 people are expected to take part in the marathon this year.