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
68 − 10 = ______
97 − 10 = ______
3 × 10 = ______
81 − 10 = ______
6 × 10 = ______
11 + 10 = ______
12 + 10 = ______
58 + 10 = ______
87 − 10 = ______
41 + 10 = ______
88 + 20 = ______
23 + 10 = ______
23 + 20 = ______
12 + 20 = ______
91 − 10 = ______
78 + 10 = ______
72 + 10 = ______
1 × 10 = ______
27 − 10 = ______
90 − 10 = ______
