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
22 + 20 = ______
86 + 10 = ______
5 × 10 = ______
7 × 10 = ______
74 + 10 = ______
79 − 10 = ______
9 × 10 = ______
64 + 20 = ______
56 − 10 = ______
91 − 10 = ______
37 − 10 = ______
28 − 10 = ______
2 × 10 = ______
6 × 10 = ______
26 + 10 = ______
69 − 10 = ______
52 + 20 = ______
68 + 10 = ______
8 × 10 = ______
83 − 10 = ______
