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
74 + 10 = ______
74 + 20 = ______
52 − 10 = ______
75 + 10 = ______
94 − 10 = ______
7 × 10 = ______
3 × 10 = ______
50 − 10 = ______
85 + 10 = ______
80 + 10 = ______
63 − 10 = ______
4 × 10 = ______
18 + 10 = ______
53 − 10 = ______
27 − 10 = ______
6 × 10 = ______
52 + 20 = ______
54 + 20 = ______
42 + 10 = ______
41 − 10 = ______
