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
43 + 10 = ______
72 + 20 = ______
7 × 10 = ______
52 + 20 = ______
27 + 20 = ______
60 + 10 = ______
5 × 10 = ______
9 × 10 = ______
40 − 10 = ______
2 × 10 = ______
12 + 20 = ______
40 + 20 = ______
6 × 10 = ______
42 + 20 = ______
83 + 10 = ______
30 − 10 = ______
45 + 20 = ______
47 − 10 = ______
87 − 10 = ______
59 + 10 = ______
