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
70 − 10 = ______
73 + 20 = ______
35 + 10 = ______
81 − 10 = ______
3 × 10 = ______
73 + 10 = ______
73 − 10 = ______
44 + 10 = ______
45 + 20 = ______
62 + 20 = ______
4 × 10 = ______
50 + 10 = ______
28 + 10 = ______
88 − 10 = ______
72 − 10 = ______
2 × 10 = ______
87 + 10 = ______
39 − 10 = ______
32 − 10 = ______
55 + 20 = ______
