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
46 + 10 = ______
3 × 10 = ______
86 + 10 = ______
4 × 10 = ______
56 + 20 = ______
50 + 10 = ______
22 + 20 = ______
92 − 10 = ______
36 + 10 = ______
83 − 10 = ______
6 × 10 = ______
33 − 10 = ______
57 − 10 = ______
57 + 20 = ______
21 + 20 = ______
8 × 10 = ______
11 + 20 = ______
47 + 10 = ______
9 × 10 = ______
53 − 10 = ______
