Matemáticas mentales Worksheet
Recommended for 1er grado — 5to grado
Matemáticas mentales Worksheet
Name: ____________________Date: ____________
Instructions: Usar estrategias mentales como sumar diez, duplicar y compensar para calcular rápidamente.
20 problems
3 × 10 = ______
45 + 20 = ______
24 + 20 = ______
27 + 20 = ______
8 × 10 = ______
1 × 10 = ______
7 × 10 = ______
6 × 10 = ______
92 − 10 = ______
49 − 10 = ______
46 + 10 = ______
9 × 10 = ______
53 + 20 = ______
11 + 10 = ______
33 + 20 = ______
82 + 20 = ______
49 + 10 = ______
41 + 20 = ______
56 − 10 = ______
33 + 10 = ______
