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
8 × 10 = ______
40 + 20 = ______
64 + 10 = ______
38 + 20 = ______
15 + 10 = ______
51 + 10 = ______
54 − 10 = ______
67 + 10 = ______
18 + 20 = ______
76 + 20 = ______
32 − 10 = ______
20 + 20 = ______
13 + 20 = ______
50 + 10 = ______
33 − 10 = ______
40 + 10 = ______
6 × 10 = ______
78 − 10 = ______
66 − 10 = ______
7 × 10 = ______
