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
69 + 10 = ______
18 + 10 = ______
35 + 10 = ______
56 − 10 = ______
60 + 10 = ______
8 × 10 = ______
4 × 10 = ______
1 × 10 = ______
35 + 20 = ______
88 − 10 = ______
73 + 20 = ______
48 − 10 = ______
83 + 20 = ______
7 × 10 = ______
29 − 10 = ______
87 − 10 = ______
62 + 10 = ______
20 + 10 = ______
50 − 10 = ______
9 × 10 = ______
