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
33 + 20 = ______
93 − 10 = ______
5 × 10 = ______
34 + 20 = ______
45 + 10 = ______
9 × 10 = ______
72 − 10 = ______
73 − 10 = ______
6 × 10 = ______
7 × 10 = ______
21 + 10 = ______
60 + 10 = ______
55 + 20 = ______
43 − 10 = ______
61 − 10 = ______
2 × 10 = ______
54 − 10 = ______
66 − 10 = ______
38 + 10 = ______
52 − 10 = ______
