Decimal fractions

Round off 4 719 to the nearest HUNDRED.

Estimate $6{,}2\times38{,}4$ by rounding each factor to the nearest whole number, then calculate the EXACT product.

Calculate: 10,72 − 2,8

Write 0,38 as a common fraction in its simplest form.

Round off to ONE decimal place: 40,43

Calculate: $97{,}204\times1000$

Calculate: $11{,}84\div4$

Calculate: $12\times9{,}9$

Write $\tfrac{1}{2}$ as a decimal.

Arrange the following decimals in ascending order: 0,596; 0,861; 0,383; 0,338

Calculate: $81{,}015\div100$

Write 0,71 as a percentage.