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
56 − 10 = ______
45 + 10 = ______
89 + 20 = ______
1 × 10 = ______
3 × 10 = ______
33 + 20 = ______
95 − 10 = ______
40 − 10 = ______
6 × 10 = ______
88 + 10 = ______
61 + 20 = ______
37 − 10 = ______
27 + 20 = ______
7 × 10 = ______
38 + 10 = ______
12 + 20 = ______
74 − 10 = ______
53 + 10 = ______
71 + 10 = ______
93 − 10 = ______
