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
4 × 10 = ______
7 × 10 = ______
44 + 20 = ______
41 + 10 = ______
8 × 10 = ______
9 × 10 = ______
48 − 10 = ______
94 − 10 = ______
25 − 10 = ______
44 + 10 = ______
42 + 10 = ______
31 + 10 = ______
58 − 10 = ______
24 + 10 = ______
6 × 10 = ______
25 + 10 = ______
78 + 20 = ______
89 + 20 = ______
27 + 20 = ______
36 − 10 = ______
