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
6 × 10 = ______
1 × 10 = ______
70 + 10 = ______
13 + 20 = ______
93 − 10 = ______
9 × 10 = ______
34 − 10 = ______
26 + 10 = ______
27 + 10 = ______
24 − 10 = ______
32 + 10 = ______
27 − 10 = ______
57 + 20 = ______
45 + 10 = ______
8 × 10 = ______
26 + 20 = ______
38 − 10 = ______
33 + 10 = ______
71 + 20 = ______
44 + 20 = ______
