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
25 + 20 = ______
73 + 10 = ______
60 + 20 = ______
31 + 20 = ______
88 + 10 = ______
82 + 20 = ______
8 × 10 = ______
48 + 20 = ______
2 × 10 = ______
33 − 10 = ______
30 + 10 = ______
53 − 10 = ______
4 × 10 = ______
73 + 20 = ______
55 + 10 = ______
64 − 10 = ______
56 − 10 = ______
83 + 20 = ______
96 − 10 = ______
9 × 10 = ______
