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
81 + 10 = ______
35 + 20 = ______
73 − 10 = ______
4 × 10 = ______
22 − 10 = ______
89 − 10 = ______
1 × 10 = ______
55 + 10 = ______
52 + 10 = ______
79 − 10 = ______
83 + 10 = ______
50 + 20 = ______
28 − 10 = ______
98 − 10 = ______
45 + 20 = ______
59 − 10 = ______
8 × 10 = ______
13 + 20 = ______
5 × 10 = ______
56 − 10 = ______
