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
90 − 10 = ______
6 × 10 = ______
2 × 10 = ______
35 + 20 = ______
7 × 10 = ______
43 + 20 = ______
51 − 10 = ______
8 × 10 = ______
35 − 10 = ______
61 − 10 = ______
33 − 10 = ______
97 − 10 = ______
5 × 10 = ______
71 + 20 = ______
44 + 20 = ______
28 + 10 = ______
18 + 10 = ______
44 + 10 = ______
65 − 10 = ______
64 + 10 = ______
