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
1 × 10 = ______
31 − 10 = ______
66 + 20 = ______
12 + 20 = ______
13 + 20 = ______
7 × 10 = ______
67 − 10 = ______
4 × 10 = ______
6 × 10 = ______
53 + 20 = ______
77 − 10 = ______
63 + 10 = ______
62 + 20 = ______
41 + 10 = ______
53 + 10 = ______
27 + 10 = ______
3 × 10 = ______
85 + 10 = ______
9 × 10 = ______
82 − 10 = ______
