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
85 + 20 = ______
64 + 10 = ______
27 − 10 = ______
5 × 10 = ______
6 × 10 = ______
1 × 10 = ______
26 − 10 = ______
90 − 10 = ______
3 × 10 = ______
58 − 10 = ______
73 + 10 = ______
97 − 10 = ______
61 − 10 = ______
68 − 10 = ______
41 + 10 = ______
79 − 10 = ______
80 + 10 = ______
75 + 10 = ______
85 + 10 = ______
57 + 10 = ______
