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
59 − 10 = ______
14 + 20 = ______
85 − 10 = ______
35 + 20 = ______
87 + 10 = ______
8 × 10 = ______
30 − 10 = ______
71 − 10 = ______
57 + 10 = ______
28 + 20 = ______
65 − 10 = ______
33 + 10 = ______
62 + 20 = ______
55 + 10 = ______
23 − 10 = ______
60 + 20 = ______
7 × 10 = ______
83 + 20 = ______
26 − 10 = ______
5 × 10 = ______
